220232304 has 40 divisors (see below), whose sum is σ = 632149520. Its totient is φ = 73410624.

The previous prime is 220232269. The next prime is 220232323. The reversal of 220232304 is 403232022.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 254467 + ... + 255330.

It is an arithmetic number, because the mean of its divisors is an integer number (15803738).

Almost surely, 2^220232304 is an apocalyptic number.

220232304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

220232304 is an abundant number, since it is smaller than the sum of its proper divisors (411917216).

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

220232304 is a wasteful number, since it uses less digits than its factorization.

220232304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509814 (or 509802 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 220232304 is about 14840.2258742918. The cubic root of 220232304 is about 603.8934800387.

Adding to 220232304 its reverse (403232022), we get a palindrome (623464326).

The spelling of 220232304 in words is "two hundred twenty million, two hundred thirty-two thousand, three hundred four".