38888656 has 20 divisors (see below), whose sum is σ = 79779492. Its totient is φ = 18300416.

The previous prime is 38888651. The next prime is 38888677. The reversal of 38888656 is 65688883.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 32718400 + 6170256 = 5720^2 + 2484^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38888651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71215 + ... + 71758.

Almost surely, 2^38888656 is an apocalyptic number.

It is an amenable number.

38888656 is an abundant number, since it is smaller than the sum of its proper divisors (40890836).

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

38888656 is a wasteful number, since it uses less digits than its factorization.

38888656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142998 (or 142992 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 52.

The square root of 38888656 is about 6236.0769719432. The cubic root of 38888656 is about 338.7981092967.

It can be divided in two parts, 3888 and 8656, that added together give a square (12544 = 112²).

The spelling of 38888656 in words is "thirty-eight million, eight hundred eighty-eight thousand, six hundred fifty-six".