220456320 has 256 divisors, whose sum is σ = 822528000. Its totient is φ = 49176576.

The previous prime is 220456307. The next prime is 220456339. The reversal of 220456320 is 23654022.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 631506 + ... + 631854.

It is an arithmetic number, because the mean of its divisors is an integer number (3213000).

Almost surely, 2^220456320 is an apocalyptic number.

220456320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220456320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411264000).

220456320 is an abundant number, since it is smaller than the sum of its proper divisors (602071680).

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

220456320 is a wasteful number, since it uses less digits than its factorization.

220456320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 220456320 is about 14847.7715499667. The cubic root of 220456320 is about 604.0981668725.

The spelling of 220456320 in words is "two hundred twenty million, four hundred fifty-six thousand, three hundred twenty".