220998320 has 20 divisors (see below), whose sum is σ = 513821280. Its totient is φ = 88399296.

The previous prime is 220998289. The next prime is 220998341. The reversal of 220998320 is 23899022.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1381160 + ... + 1381319.

It is an arithmetic number, because the mean of its divisors is an integer number (25691064).

Almost surely, 2^220998320 is an apocalyptic number.

220998320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220998320 is an abundant number, since it is smaller than the sum of its proper divisors (292822960).

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

220998320 is a wasteful number, since it uses less digits than its factorization.

220998320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2762492 (or 2762486 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 220998320 is about 14866.0122426964. The cubic root of 220998320 is about 604.5928275936.

The spelling of 220998320 in words is "two hundred twenty million, nine hundred ninety-eight thousand, three hundred twenty".