38639132 has 12 divisors (see below), whose sum is σ = 77278320. Its totient is φ = 16559616.

The previous prime is 38639093. The next prime is 38639143. The reversal of 38639132 is 23193683.

38639132 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 38639092 and 38639101.

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, 689957 + ... + 690012.

It is an arithmetic number, because the mean of its divisors is an integer number (6439860).

Almost surely, 2^38639132 is an apocalyptic number.

It is an amenable number.

38639132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

38639132 is a wasteful number, since it uses less digits than its factorization.

38639132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379980 (or 1379978 counting only the distinct ones).

The product of its digits is 23328, while the sum is 35.

The square root of 38639132 is about 6216.0382881704. The cubic root of 38639132 is about 338.0719359511.

The spelling of 38639132 in words is "thirty-eight million, six hundred thirty-nine thousand, one hundred thirty-two".