74389232 has 20 divisors (see below), whose sum is σ = 144782400. Its totient is φ = 37026048.

The previous prime is 74389213. The next prime is 74389247. The reversal of 74389232 is 23298347.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6857 + ... + 13992.

It is an arithmetic number, because the mean of its divisors is an integer number (7239120).

Almost surely, 2^74389232 is an apocalyptic number.

It is an amenable number.

74389232 is a deficient number, since it is larger than the sum of its proper divisors (70393168).

74389232 is a wasteful number, since it uses less digits than its factorization.

74389232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21080 (or 21074 counting only the distinct ones).

The product of its digits is 72576, while the sum is 38.

The square root of 74389232 is about 8624.9192459988. The cubic root of 74389232 is about 420.5684517445.

The spelling of 74389232 in words is "seventy-four million, three hundred eighty-nine thousand, two hundred thirty-two".