38866872 has 128 divisors (see below), whose sum is σ = 114255360. Its totient is φ = 10897920.

The previous prime is 38866853. The next prime is 38866907. The reversal of 38866872 is 27866883.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224578 + ... + 224750.

It is an arithmetic number, because the mean of its divisors is an integer number (892620).

Almost surely, 2^38866872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38866872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57127680).

38866872 is an abundant number, since it is smaller than the sum of its proper divisors (75388488).

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

38866872 is a wasteful number, since it uses less digits than its factorization.

38866872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 249 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 38866872 is about 6234.3301163798. The cubic root of 38866872 is about 338.7348367191.

The spelling of 38866872 in words is "thirty-eight million, eight hundred sixty-six thousand, eight hundred seventy-two".