223931664 has 60 divisors (see below), whose sum is σ = 683674992. Its totient is φ = 67857600.

The previous prime is 223931639. The next prime is 223931677. The reversal of 223931664 is 466139322.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69102 + ... + 72269.

Almost surely, 2^223931664 is an apocalyptic number.

223931664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

223931664 is an abundant number, since it is smaller than the sum of its proper divisors (459743328).

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

223931664 is a wasteful number, since it uses less digits than its factorization.

223931664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141396 (or 141387 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 223931664 is about 14964.3464274254. The cubic root of 223931664 is about 607.2560296581.

The spelling of 223931664 in words is "two hundred twenty-three million, nine hundred thirty-one thousand, six hundred sixty-four".