38809152 has 112 divisors (see below), whose sum is σ = 117368320. Its totient is φ = 12566016.

The previous prime is 38809139. The next prime is 38809171. The reversal of 38809152 is 25190883.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63633 + ... + 64239.

Almost surely, 2^38809152 is an apocalyptic number.

38809152 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38809152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58684160).

38809152 is an abundant number, since it is smaller than the sum of its proper divisors (78559168).

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

38809152 is a wasteful number, since it uses less digits than its factorization.

38809152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665 (or 649 counting only the distinct ones).

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

The square root of 38809152 is about 6229.6991901696. The cubic root of 38809152 is about 338.5670720707.

The spelling of 38809152 in words is "thirty-eight million, eight hundred nine thousand, one hundred fifty-two".