223490784 has 48 divisors (see below), whose sum is σ = 639999360. Its totient is φ = 67724160.

The previous prime is 223490777. The next prime is 223490801. The reversal of 223490784 is 487094322.

It is a tau number, because it is divible by the number of its divisors (48).

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, 104764 + ... + 106875.

It is an arithmetic number, because the mean of its divisors is an integer number (13333320).

Almost surely, 2^223490784 is an apocalyptic number.

223490784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

223490784 is an abundant number, since it is smaller than the sum of its proper divisors (416508576).

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

223490784 is a wasteful number, since it uses less digits than its factorization.

223490784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211663 (or 211655 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 223490784 is about 14949.6081553999. The cubic root of 223490784 is about 606.8572429216.

The spelling of 223490784 in words is "two hundred twenty-three million, four hundred ninety thousand, seven hundred eighty-four".