38839925 has 6 divisors (see below), whose sum is σ = 48161538. Its totient is φ = 31071920.

The previous prime is 38839921. The next prime is 38839949. The reversal of 38839925 is 52993883.

It can be written as a sum of positive squares in 3 ways, for example, as 4289041 + 34550884 = 2071^2 + 5878^2 .

It is not a de Polignac number, because 38839925 - 2² = 38839921 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38839925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38839921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 776774 + ... + 776823.

It is an arithmetic number, because the mean of its divisors is an integer number (8026923).

Almost surely, 2^38839925 is an apocalyptic number.

It is an amenable number.

38839925 is a deficient number, since it is larger than the sum of its proper divisors (9321613).

38839925 is a wasteful number, since it uses less digits than its factorization.

38839925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553607 (or 1553602 counting only the distinct ones).

The product of its digits is 466560, while the sum is 47.

The square root of 38839925 is about 6232.1685631889. The cubic root of 38839925 is about 338.6565352635.

The spelling of 38839925 in words is "thirty-eight million, eight hundred thirty-nine thousand, nine hundred twenty-five".