223412904 has 160 divisors (see below), whose sum is σ = 735467040. Its totient is φ = 62467200.

The previous prime is 223412879. The next prime is 223412921. The reversal of 223412904 is 409214322.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 91459 + ... + 93869.

It is an arithmetic number, because the mean of its divisors is an integer number (4596669).

Almost surely, 2^223412904 is an apocalyptic number.

223412904 is a gapful number since it is divisible by the number (24) 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 223412904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367733520).

223412904 is an abundant number, since it is smaller than the sum of its proper divisors (512054136).

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

223412904 is a wasteful number, since it uses less digits than its factorization.

223412904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453 (or 2440 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 223412904 is about 14947.0031778949. The cubic root of 223412904 is about 606.7867440669.

The spelling of 223412904 in words is "two hundred twenty-three million, four hundred twelve thousand, nine hundred four".