38399975 has 12 divisors (see below), whose sum is σ = 47887560. Its totient is φ = 30544800.

The previous prime is 38399951. The next prime is 38399981. The reversal of 38399975 is 57999383.

It is a de Polignac number, because none of the positive numbers 2^k-38399975 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185 + ... + 8765.

It is an arithmetic number, because the mean of its divisors is an integer number (3990630).

Almost surely, 2^38399975 is an apocalyptic number.

38399975 is a deficient number, since it is larger than the sum of its proper divisors (9487585).

38399975 is a wasteful number, since it uses less digits than its factorization.

38399975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8770 (or 8765 counting only the distinct ones).

The product of its digits is 1837080, while the sum is 53.

The square root of 38399975 is about 6196.7713367527. The cubic root of 38399975 is about 337.3729929060.

The spelling of 38399975 in words is "thirty-eight million, three hundred ninety-nine thousand, nine hundred seventy-five".