38991325 has 48 divisors (see below), whose sum is σ = 54996480. Its totient is φ = 27276480.

The previous prime is 38991311. The next prime is 38991343. The reversal of 38991325 is 52319983.

It is not a de Polignac number, because 38991325 - 2⁹ = 38990813 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 469734 + ... + 469816.

It is an arithmetic number, because the mean of its divisors is an integer number (1145760).

Almost surely, 2^38991325 is an apocalyptic number.

It is an amenable number.

38991325 is a deficient number, since it is larger than the sum of its proper divisors (16005155).

38991325 is a wasteful number, since it uses less digits than its factorization.

38991325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 173 counting only the distinct ones).

The product of its digits is 58320, while the sum is 40.

The square root of 38991325 is about 6244.3034039034. The cubic root of 38991325 is about 339.0959981982.

The spelling of 38991325 in words is "thirty-eight million, nine hundred ninety-one thousand, three hundred twenty-five".