74037021 has 16 divisors (see below), whose sum is σ = 104391168. Its totient is φ = 46598400.

The previous prime is 74037017. The next prime is 74037043. The reversal of 74037021 is 12073047.

It is not a de Polignac number, because 74037021 - 2² = 74037017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74036982 and 74037000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74037011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5896 + ... + 13521.

It is an arithmetic number, because the mean of its divisors is an integer number (6524448).

Almost surely, 2^74037021 is an apocalyptic number.

It is an amenable number.

74037021 is a deficient number, since it is larger than the sum of its proper divisors (30354147).

74037021 is a wasteful number, since it uses less digits than its factorization.

74037021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19492.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 74037021 is about 8604.4767998990. The cubic root of 74037021 is about 419.9036456970.

The spelling of 74037021 in words is "seventy-four million, thirty-seven thousand, twenty-one".