38339865 has 32 divisors (see below), whose sum is σ = 68947200. Its totient is φ = 20211840.

The previous prime is 38339857. The next prime is 38339887. The reversal of 38339865 is 56893383.

It is not a de Polignac number, because 38339865 - 2³ = 38339857 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 38339865.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10420 + ... + 13610.

It is an arithmetic number, because the mean of its divisors is an integer number (2154600).

Almost surely, 2^38339865 is an apocalyptic number.

It is an amenable number.

38339865 is a deficient number, since it is larger than the sum of its proper divisors (30607335).

38339865 is a wasteful number, since it uses less digits than its factorization.

38339865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3294 (or 3288 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 38339865 is about 6191.9193308699. The cubic root of 38339865 is about 337.1968636124.

It can be divided in two parts, 38339 and 865, that added together give a square (39204 = 198²).

The spelling of 38339865 in words is "thirty-eight million, three hundred thirty-nine thousand, eight hundred sixty-five".