38128432 has 20 divisors (see below), whose sum is σ = 74292120. Its totient is φ = 18956288.

The previous prime is 38128423. The next prime is 38128439. The reversal of 38128432 is 23482183.

It is a junction number, because it is equal to n+sod(n) for n = 38128394 and 38128403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38128439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3793 + ... + 9520.

It is an arithmetic number, because the mean of its divisors is an integer number (3714606).

Almost surely, 2^38128432 is an apocalyptic number.

It is an amenable number.

38128432 is a deficient number, since it is larger than the sum of its proper divisors (36163688).

38128432 is a wasteful number, since it uses less digits than its factorization.

38128432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13500 (or 13494 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 38128432 is about 6174.8224265966. The cubic root of 38128432 is about 336.5758737405.

The spelling of 38128432 in words is "thirty-eight million, one hundred twenty-eight thousand, four hundred thirty-two".