38128908 has 24 divisors (see below), whose sum is σ = 89328960. Its totient is φ = 12658000.

The previous prime is 38128903. The next prime is 38128913. The reversal of 38128908 is 80982183.

It is an interprime number because it is at equal distance from previous prime (38128903) and next prime (38128913).

It is not an unprimeable number, because it can be changed into a prime (38128901) 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 7 ways as a sum of consecutive naturals, for example, 3318 + ... + 9341.

It is an arithmetic number, because the mean of its divisors is an integer number (3722040).

Almost surely, 2^38128908 is an apocalyptic number.

It is an amenable number.

38128908 is an abundant number, since it is smaller than the sum of its proper divisors (51200052).

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

38128908 is a wasteful number, since it uses less digits than its factorization.

38128908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12917 (or 12915 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 38128908 is about 6174.8609700948. The cubic root of 38128908 is about 336.5772743527.

It can be divided in two parts, 3812 and 8908, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 38128908 in words is "thirty-eight million, one hundred twenty-eight thousand, nine hundred eight".