223456992 has 72 divisors (see below), whose sum is σ = 644780808. Its totient is φ = 67710720.

The previous prime is 223456991. The next prime is 223456997. The reversal of 223456992 is 299654322.

223456992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223456991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1998 + ... + 21234.

It is an arithmetic number, because the mean of its divisors is an integer number (8955289).

Almost surely, 2^223456992 is an apocalyptic number.

223456992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223456992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322390404).

223456992 is an abundant number, since it is smaller than the sum of its proper divisors (421323816).

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

223456992 is a wasteful number, since it uses less digits than its factorization.

223456992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19272 (or 19253 counting only the distinct ones).

The product of its digits is 233280, while the sum is 42.

The square root of 223456992 is about 14948.4779158281. The cubic root of 223456992 is about 606.8266555998.

The spelling of 223456992 in words is "two hundred twenty-three million, four hundred fifty-six thousand, nine hundred ninety-two".