38158902 has 12 divisors (see below), whose sum is σ = 82677660. Its totient is φ = 12719628.

The previous prime is 38158891. The next prime is 38158903. The reversal of 38158902 is 20985183.

It is a super-2 number, since 2×38158902² = 2912203603691208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38158903) 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, 1059952 + ... + 1059987.

It is an arithmetic number, because the mean of its divisors is an integer number (6889805).

Almost surely, 2^38158902 is an apocalyptic number.

38158902 is an abundant number, since it is smaller than the sum of its proper divisors (44518758).

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

38158902 is a wasteful number, since it uses less digits than its factorization.

38158902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2119947 (or 2119944 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 38158902 is about 6177.2892112965. The cubic root of 38158902 is about 336.6655070814.

It can be divided in two parts, 38158 and 902, that added together give a triangular number (39060 = T₂₇₉).

The spelling of 38158902 in words is "thirty-eight million, one hundred fifty-eight thousand, nine hundred two".