373721664 has 56 divisors (see below), whose sum is σ = 1031808960. Its totient is φ = 119156224.

The previous prime is 373721657. The next prime is 373721669. The reversal of 373721664 is 466127373.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (373721669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37899 + ... + 46730.

It is an arithmetic number, because the mean of its divisors is an integer number (18425160).

Almost surely, 2^373721664 is an apocalyptic number.

It is an amenable number.

373721664 is an abundant number, since it is smaller than the sum of its proper divisors (658087296).

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

373721664 is a wasteful number, since it uses less digits than its factorization.

373721664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84667 (or 84657 counting only the distinct ones).

The product of its digits is 127008, while the sum is 39.

The square root of 373721664 is about 19331.8820604720. The cubic root of 373721664 is about 720.3044391564.

The spelling of 373721664 in words is "three hundred seventy-three million, seven hundred twenty-one thousand, six hundred sixty-four".