74057430 has 64 divisors (see below), whose sum is σ = 185131008. Its totient is φ = 18944640.

The previous prime is 74057429. The next prime is 74057441. The reversal of 74057430 is 3475047.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74235 + ... + 75225.

It is an arithmetic number, because the mean of its divisors is an integer number (2892672).

Almost surely, 2^74057430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74057430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92565504).

74057430 is an abundant number, since it is smaller than the sum of its proper divisors (111073578).

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

74057430 is a wasteful number, since it uses less digits than its factorization.

74057430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101.

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 74057430 is about 8605.6626705908. The cubic root of 74057430 is about 419.9422256131.

The spelling of 74057430 in words is "seventy-four million, fifty-seven thousand, four hundred thirty".