74772152 has 64 divisors (see below), whose sum is σ = 173644800. Its totient is φ = 29393280.

The previous prime is 74772109. The next prime is 74772197. The reversal of 74772152 is 25127747.

It is a super-2 number, since 2×74772152² = 11181749429422208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197099 + ... + 197477.

It is an arithmetic number, because the mean of its divisors is an integer number (2713200).

Almost surely, 2^74772152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74772152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86822400).

74772152 is an abundant number, since it is smaller than the sum of its proper divisors (98872648).

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

74772152 is a wasteful number, since it uses less digits than its factorization.

74772152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676 (or 672 counting only the distinct ones).

The product of its digits is 27440, while the sum is 35.

The square root of 74772152 is about 8647.0892212351. The cubic root of 74772152 is about 421.2888451353.

Adding to 74772152 its reverse (25127747), we get a palindrome (99899899).

The spelling of 74772152 in words is "seventy-four million, seven hundred seventy-two thousand, one hundred fifty-two".