38007140 has 24 divisors (see below), whose sum is σ = 81973752. Its totient is φ = 14791680.

The previous prime is 38007133. The next prime is 38007191. The reversal of 38007140 is 4170083.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2390116 + 35617024 = 1546^2 + 5968^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24941 + ... + 26420.

It is an arithmetic number, because the mean of its divisors is an integer number (3415573).

Almost surely, 2^38007140 is an apocalyptic number.

It is an amenable number.

38007140 is an abundant number, since it is smaller than the sum of its proper divisors (43966612).

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

38007140 is a wasteful number, since it uses less digits than its factorization.

38007140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51407 (or 51405 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 38007140 is about 6164.9931062411. The cubic root of 38007140 is about 336.2185959440.

The spelling of 38007140 in words is "thirty-eight million, seven thousand, one hundred forty".