38992275 has 72 divisors (see below), whose sum is σ = 84081920. Its totient is φ = 16873920.

The previous prime is 38992253. The next prime is 38992319. The reversal of 38992275 is 57229983.

It is not a de Polignac number, because 38992275 - 2¹⁴ = 38975891 is a prime.

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 38992275.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 29274 + ... + 30576.

Almost surely, 2^38992275 is an apocalyptic number.

38992275 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

38992275 is an abundant number, since it is smaller than the sum of its proper divisors (45089645).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38992275 is a wasteful number, since it uses less digits than its factorization.

38992275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345 (or 1337 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 38992275 is about 6244.3794727739. The cubic root of 38992275 is about 339.0987521320.

The spelling of 38992275 in words is "thirty-eight million, nine hundred ninety-two thousand, two hundred seventy-five".