37491972 has 24 divisors (see below), whose sum is σ = 99978816. Its totient is φ = 10711968.

The previous prime is 37491913. The next prime is 37491991. The reversal of 37491972 is 27919473.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223083 + ... + 223250.

It is an arithmetic number, because the mean of its divisors is an integer number (4165784).

Almost surely, 2^37491972 is an apocalyptic number.

It is an amenable number.

37491972 is an abundant number, since it is smaller than the sum of its proper divisors (62486844).

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

37491972 is a wasteful number, since it uses less digits than its factorization.

37491972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446347 (or 446345 counting only the distinct ones).

The product of its digits is 95256, while the sum is 42.

The square root of 37491972 is about 6123.0688384175. The cubic root of 37491972 is about 334.6925879688.

The spelling of 37491972 in words is "thirty-seven million, four hundred ninety-one thousand, nine hundred seventy-two".