74973672 has 48 divisors (see below), whose sum is σ = 215001540. Its totient is φ = 23520768.

The previous prime is 74973667. The next prime is 74973683. The reversal of 74973672 is 27637947.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 74545956 + 427716 = 8634^2 + 654^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29403 + ... + 31850.

Almost surely, 2^74973672 is an apocalyptic number.

74973672 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

74973672 is an abundant number, since it is smaller than the sum of its proper divisors (140027868).

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

74973672 is a wasteful number, since it uses less digits than its factorization.

74973672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61282 (or 61275 counting only the distinct ones).

The product of its digits is 444528, while the sum is 45.

The square root of 74973672 is about 8658.7338566329. The cubic root of 74973672 is about 421.6669804418. Note that the first 3 decimals are identical.

The spelling of 74973672 in words is "seventy-four million, nine hundred seventy-three thousand, six hundred seventy-two".