38648566 has 32 divisors (see below), whose sum is σ = 65007360. Its totient is φ = 17085600.

The previous prime is 38648549. The next prime is 38648567. The reversal of 38648566 is 66584683.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38648567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170145 + ... + 170371.

It is an arithmetic number, because the mean of its divisors is an integer number (2031480).

Almost surely, 2^38648566 is an apocalyptic number.

38648566 is a deficient number, since it is larger than the sum of its proper divisors (26358794).

38648566 is a wasteful number, since it uses less digits than its factorization.

38648566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420.

The product of its digits is 829440, while the sum is 46.

The square root of 38648566 is about 6216.7970853165. The cubic root of 38648566 is about 338.0994478796.

The spelling of 38648566 in words is "thirty-eight million, six hundred forty-eight thousand, five hundred sixty-six".