74745628 has 6 divisors (see below), whose sum is σ = 130804856. Its totient is φ = 37372812.

The previous prime is 74745611. The next prime is 74745637. The reversal of 74745628 is 82654747.

It is a super-2 number, since 2×74745628² = 11173817810228768, 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 as a sum of consecutive naturals, namely, 9343200 + ... + 9343207.

Almost surely, 2^74745628 is an apocalyptic number.

It is an amenable number.

74745628 is a deficient number, since it is larger than the sum of its proper divisors (56059228).

74745628 is a wasteful number, since it uses less digits than its factorization.

74745628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18686411 (or 18686409 counting only the distinct ones).

The product of its digits is 376320, while the sum is 43.

The square root of 74745628 is about 8645.5553899099. Note that the first 3 decimals coincide. The cubic root of 74745628 is about 421.2390245066.

The spelling of 74745628 in words is "seventy-four million, seven hundred forty-five thousand, six hundred twenty-eight".