220256344 has 32 divisors (see below), whose sum is σ = 514886400. Its totient is φ = 85813920.

The previous prime is 220256339. The next prime is 220256357. The reversal of 220256344 is 443652022.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178164 + ... + 179395.

It is an arithmetic number, because the mean of its divisors is an integer number (16090200).

Almost surely, 2^220256344 is an apocalyptic number.

It is an amenable number.

220256344 is an abundant number, since it is smaller than the sum of its proper divisors (294630056).

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

220256344 is a wasteful number, since it uses less digits than its factorization.

220256344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357583 (or 357579 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 220256344 is about 14841.0358129074. The cubic root of 220256344 is about 603.9154523996.

The spelling of 220256344 in words is "two hundred twenty million, two hundred fifty-six thousand, three hundred forty-four".