74432920 has 32 divisors (see below), whose sum is σ = 167793120. Its totient is φ = 29716480.

The previous prime is 74432903. The next prime is 74432923. The reversal of 74432920 is 2923447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74432923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24189 + ... + 27091.

It is an arithmetic number, because the mean of its divisors is an integer number (5243535).

Almost surely, 2^74432920 is an apocalyptic number.

It is an amenable number.

74432920 is an abundant number, since it is smaller than the sum of its proper divisors (93360200).

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

74432920 is a wasteful number, since it uses less digits than its factorization.

74432920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3555 (or 3551 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 74432920 is about 8627.4515356506. The cubic root of 74432920 is about 420.6507674162.

The spelling of 74432920 in words is "seventy-four million, four hundred thirty-two thousand, nine hundred twenty".