220647472 has 20 divisors (see below), whose sum is σ = 428880040. Its totient is φ = 109968768.

The previous prime is 220647463. The next prime is 220647499. The reversal of 220647472 is 274746022.

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 3 ways as a sum of consecutive naturals, for example, 17022 + ... + 27037.

It is an arithmetic number, because the mean of its divisors is an integer number (21444002).

Almost surely, 2^220647472 is an apocalyptic number.

It is an amenable number.

220647472 is a deficient number, since it is larger than the sum of its proper divisors (208232568).

220647472 is a wasteful number, since it uses less digits than its factorization.

220647472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44380 (or 44374 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 34.

The square root of 220647472 is about 14854.2072154659. The cubic root of 220647472 is about 604.2727157565.

The spelling of 220647472 in words is "two hundred twenty million, six hundred forty-seven thousand, four hundred seventy-two".