39973164 has 48 divisors (see below), whose sum is σ = 116288256. Its totient is φ = 10382400.

The previous prime is 39973159. The next prime is 39973177. The reversal of 39973164 is 46137993.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20707 + ... + 22554.

It is an arithmetic number, because the mean of its divisors is an integer number (2422672).

Almost surely, 2^39973164 is an apocalyptic number.

It is an amenable number.

39973164 is an abundant number, since it is smaller than the sum of its proper divisors (76315092).

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

39973164 is a wasteful number, since it uses less digits than its factorization.

39973164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43286 (or 43284 counting only the distinct ones).

The product of its digits is 122472, while the sum is 42.

The square root of 39973164 is about 6322.4333922945. The cubic root of 39973164 is about 341.9186907010.

The spelling of 39973164 in words is "thirty-nine million, nine hundred seventy-three thousand, one hundred sixty-four".