74515938 has 32 divisors (see below), whose sum is σ = 173214720. Its totient is φ = 20928720.

The previous prime is 74515937. The next prime is 74515951. The reversal of 74515938 is 83951547.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 74515938.

It is not an unprimeable number, because it can be changed into a prime (74515937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12558 + ... + 17513.

It is an arithmetic number, because the mean of its divisors is an integer number (5412960).

Almost surely, 2^74515938 is an apocalyptic number.

74515938 is an abundant number, since it is smaller than the sum of its proper divisors (98698782).

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

74515938 is a wasteful number, since it uses less digits than its factorization.

74515938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30142.

The product of its digits is 151200, while the sum is 42.

The square root of 74515938 is about 8632.2614649928. The cubic root of 74515938 is about 420.8070988275.

The spelling of 74515938 in words is "seventy-four million, five hundred fifteen thousand, nine hundred thirty-eight".