74021356 has 12 divisors (see below), whose sum is σ = 129661168. Its totient is φ = 36975312.

The previous prime is 74021351. The next prime is 74021357. The reversal of 74021356 is 65312047.

It is a super-2 number, since 2×74021356² = 10958322288157472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74021351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3816 + ... + 12751.

Almost surely, 2^74021356 is an apocalyptic number.

It is an amenable number.

74021356 is a deficient number, since it is larger than the sum of its proper divisors (55639812).

74021356 is a wasteful number, since it uses less digits than its factorization.

74021356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17688 (or 17686 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 74021356 is about 8603.5664697845. The cubic root of 74021356 is about 419.8740287365.

The spelling of 74021356 in words is "seventy-four million, twenty-one thousand, three hundred fifty-six".