74387632 has 20 divisors (see below), whose sum is σ = 157228776. Its totient is φ = 33812480.

The previous prime is 74387617. The next prime is 74387633. The reversal of 74387632 is 23678347.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (74387633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211153 + ... + 211504.

Almost surely, 2^74387632 is an apocalyptic number.

It is an amenable number.

74387632 is an abundant number, since it is smaller than the sum of its proper divisors (82841144).

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

74387632 is a wasteful number, since it uses less digits than its factorization.

74387632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422676 (or 422670 counting only the distinct ones).

The product of its digits is 169344, while the sum is 40.

The square root of 74387632 is about 8624.8264910084. The cubic root of 74387632 is about 420.5654364589.

The spelling of 74387632 in words is "seventy-four million, three hundred eighty-seven thousand, six hundred thirty-two".