74974820 has 12 divisors (see below), whose sum is σ = 157447164. Its totient is φ = 29989920.

The previous prime is 74974799. The next prime is 74974853. The reversal of 74974820 is 2847947.

It can be written as a sum of positive squares in 2 ways, for example, as 47997184 + 26977636 = 6928^2 + 5194^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1874351 + ... + 1874390.

It is an arithmetic number, because the mean of its divisors is an integer number (13120597).

Almost surely, 2^74974820 is an apocalyptic number.

It is an amenable number.

74974820 is an abundant number, since it is smaller than the sum of its proper divisors (82472344).

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

74974820 is a wasteful number, since it uses less digits than its factorization.

74974820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3748750 (or 3748748 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 74974820 is about 8658.8001478265. The cubic root of 74974820 is about 421.6691326249.

The spelling of 74974820 in words is "seventy-four million, nine hundred seventy-four thousand, eight hundred twenty".