74594920 has 16 divisors (see below), whose sum is σ = 167838660. Its totient is φ = 29837952.

The previous prime is 74594857. The next prime is 74594921. The reversal of 74594920 is 2949547.

It can be written as a sum of positive squares in 2 ways, for example, as 74338884 + 256036 = 8622^2 + 506^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 1864873 = 74594920 / (7 + 4 + 5 + 9 + 4 + 9 + 2 + 0).

It is not an unprimeable number, because it can be changed into a prime (74594921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 932397 + ... + 932476.

Almost surely, 2^74594920 is an apocalyptic number.

It is an amenable number.

74594920 is an abundant number, since it is smaller than the sum of its proper divisors (93243740).

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

74594920 is a wasteful number, since it uses less digits than its factorization.

74594920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864884 (or 1864880 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 74594920 is about 8636.8350684727. The cubic root of 74594920 is about 420.9557222914.

The spelling of 74594920 in words is "seventy-four million, five hundred ninety-four thousand, nine hundred twenty".