38681504 has 12 divisors (see below), whose sum is σ = 76154274. Its totient is φ = 19340736.

The previous prime is 38681501. The next prime is 38681509. The reversal of 38681504 is 40518683.

It can be written as a sum of positive squares in only one way, i.e., 37797904 + 883600 = 6148^2 + 940^2 .

It is not an unprimeable number, because it can be changed into a prime (38681501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 604367 + ... + 604430.

Almost surely, 2^38681504 is an apocalyptic number.

It is an amenable number.

38681504 is a deficient number, since it is larger than the sum of its proper divisors (37472770).

38681504 is a wasteful number, since it uses less digits than its factorization.

38681504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208807 (or 1208799 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 38681504 is about 6219.4456344597. The cubic root of 38681504 is about 338.1954683244.

The spelling of 38681504 in words is "thirty-eight million, six hundred eighty-one thousand, five hundred four".