220249617 has 8 divisors (see below), whose sum is σ = 335618496. Its totient is φ = 125856912.

The previous prime is 220249591. The next prime is 220249619. The reversal of 220249617 is 716942022.

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

It is not a de Polignac number, because 220249617 - 2⁷ = 220249489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220249619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5244018 + ... + 5244059.

It is an arithmetic number, because the mean of its divisors is an integer number (41952312).

Almost surely, 2^220249617 is an apocalyptic number.

It is an amenable number.

220249617 is a deficient number, since it is larger than the sum of its proper divisors (115368879).

220249617 is a wasteful number, since it uses less digits than its factorization.

220249617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10488087.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 220249617 is about 14840.8091760524. The cubic root of 220249617 is about 603.9093041384.

The spelling of 220249617 in words is "two hundred twenty million, two hundred forty-nine thousand, six hundred seventeen".