38031889 has 9 divisors (see below), whose sum is σ = 44291451. Its totient is φ = 32561760.

The previous prime is 38031859. The next prime is 38031911. The reversal of 38031889 is 98813083.

The square root of 38031889 is 6167.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 6671889 + 31360000 = 2583^2 + 5600^2 .

It is not a de Polignac number, because 38031889 - 2⁹ = 38031377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38031809) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 42729 + ... + 43609.

Almost surely, 2^38031889 is an apocalyptic number.

38031889 is the 6167-th square number.

38031889 is the 3084-th centered octagonal number.

It is an amenable number.

38031889 is a deficient number, since it is larger than the sum of its proper divisors (6259562).

38031889 is an frugal number, since it uses more digits than its factorization.

38031889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776 (or 888 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The cubic root of 38031889 is about 336.2915582747.

The spelling of 38031889 in words is "thirty-eight million, thirty-one thousand, eight hundred eighty-nine".