74502638 has 12 divisors (see below), whose sum is σ = 129999672. Its totient is φ = 31929660.

The previous prime is 74502611. The next prime is 74502689. The reversal of 74502638 is 83620547.

It is a happy number.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 74502598 and 74502607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 380018 + ... + 380213.

It is an arithmetic number, because the mean of its divisors is an integer number (10833306).

Almost surely, 2^74502638 is an apocalyptic number.

74502638 is a deficient number, since it is larger than the sum of its proper divisors (55497034).

74502638 is a wasteful number, since it uses less digits than its factorization.

74502638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760247 (or 760240 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 74502638 is about 8631.4910647002. The cubic root of 74502638 is about 420.7820613766.

The spelling of 74502638 in words is "seventy-four million, five hundred two thousand, six hundred thirty-eight".