220436568 has 48 divisors (see below), whose sum is σ = 651292200. Its totient is φ = 66798720.

The previous prime is 220436561. The next prime is 220436617. The reversal of 220436568 is 865634022.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220436561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138373 + ... + 139956.

Almost surely, 2^220436568 is an apocalyptic number.

It is an amenable number.

220436568 is an abundant number, since it is smaller than the sum of its proper divisors (430855632).

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

220436568 is a wasteful number, since it uses less digits than its factorization.

220436568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278352 (or 278345 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 220436568 is about 14847.1063847472. The cubic root of 220436568 is about 604.0801247446.

The spelling of 220436568 in words is "two hundred twenty million, four hundred thirty-six thousand, five hundred sixty-eight".