74378232 has 48 divisors (see below), whose sum is σ = 204867000. Its totient is φ = 24371136.

The previous prime is 74378191. The next prime is 74378237. The reversal of 74378232 is 23287347.

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 (74378237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4507 + ... + 13002.

Almost surely, 2^74378232 is an apocalyptic number.

74378232 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

74378232 is an abundant number, since it is smaller than the sum of its proper divisors (130488768).

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

74378232 is a wasteful number, since it uses less digits than its factorization.

74378232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17580 (or 17573 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 74378232 is about 8624.2815352932. The cubic root of 74378232 is about 420.5477207826.

The spelling of 74378232 in words is "seventy-four million, three hundred seventy-eight thousand, two hundred thirty-two".