38399039 has 16 divisors (see below), whose sum is σ = 46706688. Its totient is φ = 30817152.

The previous prime is 38399033. The next prime is 38399041. The reversal of 38399039 is 93099383.

It is a cyclic number.

It is not a de Polignac number, because 38399039 - 2¹² = 38394943 is a prime.

It is a super-2 number, since 2×38399039² = 2948972392247042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38399033) 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, 25814 + ... + 27260.

It is an arithmetic number, because the mean of its divisors is an integer number (2919168).

Almost surely, 2^38399039 is an apocalyptic number.

38399039 is a deficient number, since it is larger than the sum of its proper divisors (8307649).

38399039 is a wasteful number, since it uses less digits than its factorization.

38399039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694.

The product of its (nonzero) digits is 157464, while the sum is 44.

The square root of 38399039 is about 6196.6958130927. The cubic root of 38399039 is about 337.3702517264.

The spelling of 38399039 in words is "thirty-eight million, three hundred ninety-nine thousand, thirty-nine".