74445372 has 24 divisors (see below), whose sum is σ = 193006800. Its totient is φ = 24815088.

The previous prime is 74445367. The next prime is 74445403. The reversal of 74445372 is 27354447.

It is a super-2 number, since 2×74445372² = 11084226824436768, 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 an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344547 + ... + 344762.

It is an arithmetic number, because the mean of its divisors is an integer number (8041950).

Almost surely, 2^74445372 is an apocalyptic number.

It is an amenable number.

74445372 is an abundant number, since it is smaller than the sum of its proper divisors (118561428).

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

74445372 is a wasteful number, since it uses less digits than its factorization.

74445372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689322 (or 689314 counting only the distinct ones).

The product of its digits is 94080, while the sum is 36.

The square root of 74445372 is about 8628.1731554252. The cubic root of 74445372 is about 420.6742232172.

The spelling of 74445372 in words is "seventy-four million, four hundred forty-five thousand, three hundred seventy-two".