74675920 has 40 divisors (see below), whose sum is σ = 189407520. Its totient is φ = 27154560.

The previous prime is 74675891. The next prime is 74675921. The reversal of 74675920 is 2957647.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74675921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41550 + ... + 43309.

It is an arithmetic number, because the mean of its divisors is an integer number (4735188).

Almost surely, 2^74675920 is an apocalyptic number.

It is an amenable number.

74675920 is an abundant number, since it is smaller than the sum of its proper divisors (114731600).

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

74675920 is a wasteful number, since it uses less digits than its factorization.

74675920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84883 (or 84877 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 74675920 is about 8641.5230139137. The cubic root of 74675920 is about 421.1080341790.

The spelling of 74675920 in words is "seventy-four million, six hundred seventy-five thousand, nine hundred twenty".