37981356 has 24 divisors (see below), whose sum is σ = 101283840. Its totient is φ = 10851792.

The previous prime is 37981331. The next prime is 37981369. The reversal of 37981356 is 65318973.

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

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 7 ways as a sum of consecutive naturals, for example, 225996 + ... + 226163.

It is an arithmetic number, because the mean of its divisors is an integer number (4220160).

Almost surely, 2^37981356 is an apocalyptic number.

It is an amenable number.

37981356 is an abundant number, since it is smaller than the sum of its proper divisors (63302484).

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

37981356 is a wasteful number, since it uses less digits than its factorization.

37981356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452173 (or 452171 counting only the distinct ones).

The product of its digits is 136080, while the sum is 42.

The square root of 37981356 is about 6162.9015893490. The cubic root of 37981356 is about 336.1425486419.

The spelling of 37981356 in words is "thirty-seven million, nine hundred eighty-one thousand, three hundred fifty-six".