38121732 has 48 divisors (see below), whose sum is σ = 107822400. Its totient is φ = 11551680.

The previous prime is 38121697. The next prime is 38121737. The reversal of 38121732 is 23712183.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 38121696 and 38121705.

It is not an unprimeable number, because it can be changed into a prime (38121737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14857 + ... + 17232.

It is an arithmetic number, because the mean of its divisors is an integer number (2246300).

Almost surely, 2^38121732 is an apocalyptic number.

It is an amenable number.

38121732 is an abundant number, since it is smaller than the sum of its proper divisors (69700668).

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

38121732 is a wasteful number, since it uses less digits than its factorization.

38121732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32113 (or 32105 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 38121732 is about 6174.2798770383. The cubic root of 38121732 is about 336.5561580031.

The spelling of 38121732 in words is "thirty-eight million, one hundred twenty-one thousand, seven hundred thirty-two".