74227152 has 20 divisors (see below), whose sum is σ = 191753600. Its totient is φ = 24742368.

The previous prime is 74227121. The next prime is 74227177. The reversal of 74227152 is 25172247.

It is a super-2 number, since 2×74227152² = 11019340188062208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 773152 + ... + 773247.

It is an arithmetic number, because the mean of its divisors is an integer number (9587680).

Almost surely, 2^74227152 is an apocalyptic number.

It is an amenable number.

74227152 is an abundant number, since it is smaller than the sum of its proper divisors (117526448).

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

74227152 is a wasteful number, since it uses less digits than its factorization.

74227152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1546410 (or 1546404 counting only the distinct ones).

The product of its digits is 7840, while the sum is 30.

The square root of 74227152 is about 8615.5180923726. The cubic root of 74227152 is about 420.2627833946.

Adding to 74227152 its reverse (25172247), we get a palindrome (99399399).

The spelling of 74227152 in words is "seventy-four million, two hundred twenty-seven thousand, one hundred fifty-two".