38936740 has 24 divisors (see below), whose sum is σ = 82890360. Its totient is φ = 15360768.

The previous prime is 38936731. The next prime is 38936741. The reversal of 38936740 is 4763983.

It can be written as a sum of positive squares in 4 ways, for example, as 15665764 + 23270976 = 3958^2 + 4824^2 .

It is a junction number, because it is equal to n+sod(n) for n = 38936693 and 38936702.

It is not an unprimeable number, because it can be changed into a prime (38936741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11875 + ... + 14794.

It is an arithmetic number, because the mean of its divisors is an integer number (3453765).

Almost surely, 2^38936740 is an apocalyptic number.

It is an amenable number.

38936740 is an abundant number, since it is smaller than the sum of its proper divisors (43953620).

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

38936740 is a wasteful number, since it uses less digits than its factorization.

38936740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26751 (or 26749 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 38936740 is about 6239.9310893631. The cubic root of 38936740 is about 338.9376877780.

The spelling of 38936740 in words is "thirty-eight million, nine hundred thirty-six thousand, seven hundred forty".