37900040 has 16 divisors (see below), whose sum is σ = 85275180. Its totient is φ = 15160000.

The previous prime is 37900039. The next prime is 37900043. The reversal of 37900040 is 4000973.

It can be written as a sum of positive squares in 2 ways, for example, as 35832196 + 2067844 = 5986^2 + 1438^2 .

It is a junction number, because it is equal to n+sod(n) for n = 37899979 and 37900015.

It is not an unprimeable number, because it can be changed into a prime (37900043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473711 + ... + 473790.

Almost surely, 2^37900040 is an apocalyptic number.

It is an amenable number.

37900040 is an abundant number, since it is smaller than the sum of its proper divisors (47375140).

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

37900040 is a wasteful number, since it uses less digits than its factorization.

37900040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947512 (or 947508 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 37900040 is about 6156.3008373535. The cubic root of 37900040 is about 335.9024896559.

The spelling of 37900040 in words is "thirty-seven million, nine hundred thousand, forty".