74472552 has 288 divisors, whose sum is σ = 272095200. Its totient is φ = 18144000.

The previous prime is 74472547. The next prime is 74472557. The reversal of 74472552 is 25527447.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (74472547) and next prime (74472557).

It is a super-2 number, since 2×74472552² = 11092322002785408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74472557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 737302 + ... + 737402.

It is an arithmetic number, because the mean of its divisors is an integer number (944775).

Almost surely, 2^74472552 is an apocalyptic number.

74472552 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74472552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136047600).

74472552 is an abundant number, since it is smaller than the sum of its proper divisors (197622648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74472552 is a wasteful number, since it uses less digits than its factorization.

74472552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 143 counting only the distinct ones).

The product of its digits is 78400, while the sum is 36.

The square root of 74472552 is about 8629.7480843881. The cubic root of 74472552 is about 420.7254130309.

Adding to 74472552 its reverse (25527447), we get a palindrome (99999999).

It can be divided in two parts, 7447 and 2552, that added together give a palindrome (9999).

The spelling of 74472552 in words is "seventy-four million, four hundred seventy-two thousand, five hundred fifty-two".