223974239636 has 24 divisors (see below), whose sum is σ = 460055197056. Its totient is φ = 93394663200.

The previous prime is 223974239617. The next prime is 223974239659. The reversal of 223974239636 is 636932479322.

It is a happy number.

It is a congruent number.

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, 108094640 + ... + 108096711.

It is an arithmetic number, because the mean of its divisors is an integer number (19168966544).

Almost surely, 2^223974239636 is an apocalyptic number.

It is an amenable number.

223974239636 is an abundant number, since it is smaller than the sum of its proper divisors (236080957420).

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

223974239636 is a wasteful number, since it uses less digits than its factorization.

223974239636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216191399 (or 216191397 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 56.

The spelling of 223974239636 in words is "two hundred twenty-three billion, nine hundred seventy-four million, two hundred thirty-nine thousand, six hundred thirty-six".