223459440 has 80 divisors (see below), whose sum is σ = 694160928. Its totient is φ = 59465728.

The previous prime is 223459417. The next prime is 223459493. The reversal of 223459440 is 44954322.

223459440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×223459440² = 99868242650227200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228232 + ... + 229208.

Almost surely, 2^223459440 is an apocalyptic number.

223459440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223459440 is an abundant number, since it is smaller than the sum of its proper divisors (470701488).

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

223459440 is a wasteful number, since it uses less digits than its factorization.

223459440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946 (or 1940 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 223459440 is about 14948.5597968500. The cubic root of 223459440 is about 606.8288715463.

The spelling of 223459440 in words is "two hundred twenty-three million, four hundred fifty-nine thousand, four hundred forty".