220582945 has 8 divisors (see below), whose sum is σ = 288763200. Its totient is φ = 160423920.

The previous prime is 220582933. The next prime is 220582963. The reversal of 220582945 is 549285022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220582945 - 2⁹ = 220582433 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2005245 + ... + 2005354.

It is an arithmetic number, because the mean of its divisors is an integer number (36095400).

Almost surely, 2^220582945 is an apocalyptic number.

It is an amenable number.

220582945 is a deficient number, since it is larger than the sum of its proper divisors (68180255).

220582945 is a wasteful number, since it uses less digits than its factorization.

220582945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4010615.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 220582945 is about 14852.0350457437. The cubic root of 220582945 is about 604.2138047301.

The spelling of 220582945 in words is "two hundred twenty million, five hundred eighty-two thousand, nine hundred forty-five".