38685144 has 16 divisors (see below), whose sum is σ = 96712920. Its totient is φ = 12895040.

The previous prime is 38685133. The next prime is 38685161. The reversal of 38685144 is 44158683.

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, 805917 + ... + 805964.

Almost surely, 2^38685144 is an apocalyptic number.

It is an amenable number.

38685144 is an abundant number, since it is smaller than the sum of its proper divisors (58027776).

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

38685144 is a wasteful number, since it uses less digits than its factorization.

38685144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611890 (or 1611886 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 38685144 is about 6219.7382581585. The cubic root of 38685144 is about 338.2060762616.

The spelling of 38685144 in words is "thirty-eight million, six hundred eighty-five thousand, one hundred forty-four".