223997256 has 96 divisors (see below), whose sum is σ = 696783360. Its totient is φ = 63680256.

The previous prime is 223997243. The next prime is 223997269. The reversal of 223997256 is 652799322.

It is a happy number.

223997256 is a `hidden beast` number, since 2 + 2 + 399 + 7 + 256 = 666.

It is an interprime number because it is at equal distance from previous prime (223997243) and next prime (223997269).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111396 + ... + 113388.

It is an arithmetic number, because the mean of its divisors is an integer number (7258160).

Almost surely, 2^223997256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223997256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348391680).

223997256 is an abundant number, since it is smaller than the sum of its proper divisors (472786104).

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

223997256 is a wasteful number, since it uses less digits than its factorization.

223997256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235 (or 2228 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 223997256 is about 14966.5378762090. The cubic root of 223997256 is about 607.3153144840.

The spelling of 223997256 in words is "two hundred twenty-three million, nine hundred ninety-seven thousand, two hundred fifty-six".