220662420 has 96 divisors (see below), whose sum is σ = 676601856. Its totient is φ = 53289600.

The previous prime is 220662347. The next prime is 220662427. The reversal of 220662420 is 24266022.

220662420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220662427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 241765 + ... + 242675.

It is an arithmetic number, because the mean of its divisors is an integer number (7047936).

Almost surely, 2^220662420 is an apocalyptic number.

220662420 is a gapful number since it is divisible by the number (20) 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 220662420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338300928).

220662420 is an abundant number, since it is smaller than the sum of its proper divisors (455939436).

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

220662420 is a wasteful number, since it uses less digits than its factorization.

220662420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301 (or 1299 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 220662420 is about 14854.7103640562. The cubic root of 220662420 is about 604.2863611497.

The spelling of 220662420 in words is "two hundred twenty million, six hundred sixty-two thousand, four hundred twenty".