38646872 has 32 divisors (see below), whose sum is σ = 79289280. Its totient is φ = 17513760.

The previous prime is 38646841. The next prime is 38646913. The reversal of 38646872 is 27864683.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56243 + ... + 56925.

It is an arithmetic number, because the mean of its divisors is an integer number (2477790).

Almost surely, 2^38646872 is an apocalyptic number.

It is an amenable number.

38646872 is an abundant number, since it is smaller than the sum of its proper divisors (40642408).

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

38646872 is a wasteful number, since it uses less digits than its factorization.

38646872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343 (or 1339 counting only the distinct ones).

The product of its digits is 387072, while the sum is 44.

The square root of 38646872 is about 6216.6608400330. The cubic root of 38646872 is about 338.0945080773.

The spelling of 38646872 in words is "thirty-eight million, six hundred forty-six thousand, eight hundred seventy-two".