223940928 has 28 divisors (see below), whose sum is σ = 592510880. Its totient is φ = 74646912.

The previous prime is 223940923. The next prime is 223940957. The reversal of 223940928 is 829049322.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223940921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 582988 + ... + 583371.

Almost surely, 2^223940928 is an apocalyptic number.

It is an amenable number.

223940928 is an abundant number, since it is smaller than the sum of its proper divisors (368569952).

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

223940928 is a wasteful number, since it uses less digits than its factorization.

223940928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166374 (or 1166364 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 223940928 is about 14964.6559599611. The cubic root of 223940928 is about 607.2644035554.

The spelling of 223940928 in words is "two hundred twenty-three million, nine hundred forty thousand, nine hundred twenty-eight".