220446464 has 36 divisors (see below), whose sum is σ = 502897584. Its totient is φ = 94476288.

The previous prime is 220446449. The next prime is 220446491. The reversal of 220446464 is 464644022.

220446464 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 220446464.

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 3 ways as a sum of consecutive naturals, for example, 59717 + ... + 63300.

Almost surely, 2^220446464 is an apocalyptic number.

It is an amenable number.

220446464 is an abundant number, since it is smaller than the sum of its proper divisors (282451120).

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

220446464 is an equidigital number, since it uses as much as digits as its factorization.

220446464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123040 (or 123026 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

The square root of 220446464 is about 14847.4396445987. The cubic root of 220446464 is about 604.0891642119.

The spelling of 220446464 in words is "two hundred twenty million, four hundred forty-six thousand, four hundred sixty-four".