37685540 has 36 divisors (see below), whose sum is σ = 80954076. Its totient is φ = 14736192.

The previous prime is 37685539. The next prime is 37685561. The reversal of 37685540 is 4558673.

It can be written as a sum of positive squares in 2 ways, for example, as 6927424 + 30758116 = 2632^2 + 5546^2 .

It is a junction number, because it is equal to n+sod(n) for n = 37685494 and 37685503.

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 11 ways as a sum of consecutive naturals, for example, 43754 + ... + 44606.

Almost surely, 2^37685540 is an apocalyptic number.

It is an amenable number.

37685540 is an abundant number, since it is smaller than the sum of its proper divisors (43268536).

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

37685540 is a wasteful number, since it uses less digits than its factorization.

37685540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956 (or 907 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 37685540 is about 6138.8549420881. The cubic root of 37685540 is about 335.2675963911.

The spelling of 37685540 in words is "thirty-seven million, six hundred eighty-five thousand, five hundred forty".