220539264 has 128 divisors (see below), whose sum is σ = 646272000. Its totient is φ = 66078720.

The previous prime is 220539247. The next prime is 220539281. The reversal of 220539264 is 462935022.

It is an interprime number because it is at equal distance from previous prime (220539247) and next prime (220539281).

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 460177 + ... + 460655.

It is an arithmetic number, because the mean of its divisors is an integer number (5049000).

Almost surely, 2^220539264 is an apocalyptic number.

220539264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220539264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323136000).

220539264 is an abundant number, since it is smaller than the sum of its proper divisors (425732736).

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

220539264 is a wasteful number, since it uses less digits than its factorization.

220539264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 220539264 is about 14850.5644337177. The cubic root of 220539264 is about 604.1739188941.

The spelling of 220539264 in words is "two hundred twenty million, five hundred thirty-nine thousand, two hundred sixty-four".