38565140 has 12 divisors (see below), whose sum is σ = 80986836. Its totient is φ = 15426048.

The previous prime is 38565139. The next prime is 38565151. The reversal of 38565140 is 4156583.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16418704 + 22146436 = 4052^2 + 4706^2 .

It is a junction number, because it is equal to n+sod(n) for n = 38565097 and 38565106.

It is a congruent number.

It is an unprimeable number.

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, 964109 + ... + 964148.

It is an arithmetic number, because the mean of its divisors is an integer number (6748903).

Almost surely, 2^38565140 is an apocalyptic number.

It is an amenable number.

38565140 is an abundant number, since it is smaller than the sum of its proper divisors (42421696).

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

38565140 is a wasteful number, since it uses less digits than its factorization.

38565140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928266 (or 1928264 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 38565140 is about 6210.0837353453. The cubic root of 38565140 is about 337.8560011234.

The spelling of 38565140 in words is "thirty-eight million, five hundred sixty-five thousand, one hundred forty".