37400040 has 48 divisors (see below), whose sum is σ = 121551300. Its totient is φ = 9973248.

The previous prime is 37400039. The next prime is 37400071. The reversal of 37400040 is 4000473.

37400040 = 51² + 52² + ... + 482².

It can be written as a sum of positive squares in 2 ways, for example, as 37380996 + 19044 = 6114^2 + 138^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 37399986 and 37400022.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51585 + ... + 52304.

Almost surely, 2^37400040 is an apocalyptic number.

37400040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

37400040 is an abundant number, since it is smaller than the sum of its proper divisors (84151260).

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

37400040 is a wasteful number, since it uses less digits than its factorization.

37400040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103906 (or 103899 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 37400040 is about 6115.5572109171. The cubic root of 37400040 is about 334.4188036480.

The spelling of 37400040 in words is "thirty-seven million, four hundred thousand, forty".