220465144 has 16 divisors (see below), whose sum is σ = 417166200. Its totient is φ = 109220832.

The previous prime is 220465139. The next prime is 220465169. The reversal of 220465144 is 441564022.

220465144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 125542 + ... + 127285.

Almost surely, 2^220465144 is an apocalyptic number.

It is an amenable number.

220465144 is a deficient number, since it is larger than the sum of its proper divisors (196701056).

220465144 is a wasteful number, since it uses less digits than its factorization.

220465144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252942 (or 252938 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 220465144 is about 14848.0686959618. The cubic root of 220465144 is about 604.1062266567.

The spelling of 220465144 in words is "two hundred twenty million, four hundred sixty-five thousand, one hundred forty-four".