74530872 has 48 divisors (see below), whose sum is σ = 217384440. Its totient is φ = 22932288.

The previous prime is 74530871. The next prime is 74530889. The reversal of 74530872 is 27803547.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74530871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38878 + ... + 40749.

Almost surely, 2^74530872 is an apocalyptic number.

74530872 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

74530872 is an abundant number, since it is smaller than the sum of its proper divisors (142853568).

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

74530872 is a wasteful number, since it uses less digits than its factorization.

74530872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79652 (or 79645 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 74530872 is about 8633.1264325272. The cubic root of 74530872 is about 420.8352087577.

The spelling of 74530872 in words is "seventy-four million, five hundred thirty thousand, eight hundred seventy-two".