38731892 has 6 divisors (see below), whose sum is σ = 67780818. Its totient is φ = 19365944.

The previous prime is 38731879. The next prime is 38731909. The reversal of 38731892 is 29813783.

It can be written as a sum of positive squares in only one way, i.e., 38019556 + 712336 = 6166^2 + 844^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4841483 + ... + 4841490.

It is an arithmetic number, because the mean of its divisors is an integer number (11296803).

Almost surely, 2^38731892 is an apocalyptic number.

It is an amenable number.

38731892 is a deficient number, since it is larger than the sum of its proper divisors (29048926).

38731892 is a wasteful number, since it uses less digits than its factorization.

38731892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9682977 (or 9682975 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The square root of 38731892 is about 6223.4951594743. The cubic root of 38731892 is about 338.3422533718.

The spelling of 38731892 in words is "thirty-eight million, seven hundred thirty-one thousand, eight hundred ninety-two".