38913156 has 24 divisors (see below), whose sum is σ = 100886240. Its totient is φ = 12971016.

The previous prime is 38913143. The next prime is 38913167. The reversal of 38913156 is 65131983.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 38913156.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180046 + ... + 180261.

Almost surely, 2^38913156 is an apocalyptic number.

38913156 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

38913156 is an abundant number, since it is smaller than the sum of its proper divisors (61973084).

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

38913156 is a wasteful number, since it uses less digits than its factorization.

38913156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360320 (or 360312 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 38913156 is about 6238.0410386595. The cubic root of 38913156 is about 338.8692423898.

The spelling of 38913156 in words is "thirty-eight million, nine hundred thirteen thousand, one hundred fifty-six".