220403420 has 48 divisors (see below), whose sum is σ = 491151360. Its totient is φ = 82845504.

The previous prime is 220403389. The next prime is 220403437. The reversal of 220403420 is 24304022.

220403420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 45977 + ... + 50543.

It is an arithmetic number, because the mean of its divisors is an integer number (10232320).

Almost surely, 2^220403420 is an apocalyptic number.

220403420 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 220403420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245575680).

220403420 is an abundant number, since it is smaller than the sum of its proper divisors (270747940).

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

220403420 is a wasteful number, since it uses less digits than its factorization.

220403420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4722 (or 4720 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 220403420 is about 14845.9900309814. The cubic root of 220403420 is about 604.0498438465.

Adding to 220403420 its reverse (24304022), we get a palindrome (244707442).

The spelling of 220403420 in words is "two hundred twenty million, four hundred three thousand, four hundred twenty".