38563994 has 16 divisors (see below), whose sum is σ = 67098048. Its totient is φ = 16280352.

The previous prime is 38563981. The next prime is 38564003. The reversal of 38563994 is 49936583.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19619 + ... + 21494.

It is an arithmetic number, because the mean of its divisors is an integer number (4193628).

Almost surely, 2^38563994 is an apocalyptic number.

38563994 is a deficient number, since it is larger than the sum of its proper divisors (28534054).

38563994 is a wasteful number, since it uses less digits than its factorization.

38563994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41189.

The product of its digits is 699840, while the sum is 47.

The square root of 38563994 is about 6209.9914653726. The cubic root of 38563994 is about 337.8526545189.

The spelling of 38563994 in words is "thirty-eight million, five hundred sixty-three thousand, nine hundred ninety-four".