38718992 has 20 divisors (see below), whose sum is σ = 80789100. Its totient is φ = 17870208.

The previous prime is 38718989. The next prime is 38718997. The reversal of 38718992 is 29981783.

It can be written as a sum of positive squares in 2 ways, for example, as 16289296 + 22429696 = 4036^2 + 4736^2 .

It is not an unprimeable number, because it can be changed into a prime (38718997) 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, 92867 + ... + 93282.

It is an arithmetic number, because the mean of its divisors is an integer number (4039455).

Almost surely, 2^38718992 is an apocalyptic number.

It is an amenable number.

38718992 is an abundant number, since it is smaller than the sum of its proper divisors (42070108).

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

38718992 is a wasteful number, since it uses less digits than its factorization.

38718992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186170 (or 186164 counting only the distinct ones).

The product of its digits is 217728, while the sum is 47.

The square root of 38718992 is about 6222.4586780468. The cubic root of 38718992 is about 338.3046865718.

The spelling of 38718992 in words is "thirty-eight million, seven hundred eighteen thousand, nine hundred ninety-two".