38664790 has 8 divisors (see below), whose sum is σ = 69596640. Its totient is φ = 15465912.

The previous prime is 38664779. The next prime is 38664811. The reversal of 38664790 is 9746683.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1933230 + ... + 1933249.

It is an arithmetic number, because the mean of its divisors is an integer number (8699580).

Almost surely, 2^38664790 is an apocalyptic number.

38664790 is a deficient number, since it is larger than the sum of its proper divisors (30931850).

38664790 is a wasteful number, since it uses less digits than its factorization.

38664790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3866486.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 38664790 is about 6218.1018003889. The cubic root of 38664790 is about 338.1467506961.

The spelling of 38664790 in words is "thirty-eight million, six hundred sixty-four thousand, seven hundred ninety".