37128972 has 18 divisors (see below), whose sum is σ = 86683548. Its totient is φ = 12369288.

The previous prime is 37128947. The next prime is 37128977. The reversal of 37128972 is 27982173.

Its product of digits (42336) is a multiple of the sum of its prime divisors (1764).

It is a self number, because there is not a number n which added to its sum of digits gives 37128972.

It is not an unprimeable number, because it can be changed into a prime (37128977) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 20229 + ... + 21987.

Almost surely, 2^37128972 is an apocalyptic number.

It is an amenable number.

37128972 is an abundant number, since it is smaller than the sum of its proper divisors (49554576).

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

37128972 is an equidigital number, since it uses as much as digits as its factorization.

37128972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3525 (or 1764 counting only the distinct ones).

The product of its digits is 42336, while the sum is 39.

The square root of 37128972 is about 6093.3547410273. The cubic root of 37128972 is about 333.6089103314.

The spelling of 37128972 in words is "thirty-seven million, one hundred twenty-eight thousand, nine hundred seventy-two".