38665776 has 20 divisors (see below), whose sum is σ = 99886712. Its totient is φ = 12888576.

The previous prime is 38665721. The next prime is 38665793. The reversal of 38665776 is 67756683.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 805537 = 38665776 / (3 + 8 + 6 + 6 + 5 + 7 + 7 + 6).

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, 402721 + ... + 402816.

Almost surely, 2^38665776 is an apocalyptic number.

It is an amenable number.

38665776 is an abundant number, since it is smaller than the sum of its proper divisors (61220936).

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

38665776 is a wasteful number, since it uses less digits than its factorization.

38665776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805548 (or 805542 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 48.

The square root of 38665776 is about 6218.1810845295. The cubic root of 38665776 is about 338.1496250585.

The spelling of 38665776 in words is "thirty-eight million, six hundred sixty-five thousand, seven hundred seventy-six".