220453420 has 24 divisors (see below), whose sum is σ = 505039248. Its totient is φ = 80164800.

The previous prime is 220453417. The next prime is 220453423. The reversal of 220453420 is 24354022.

220453420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (220453417) and next prime (220453423).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 220453391 and 220453400.

It is not an unprimeable number, because it can be changed into a prime (220453423) 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, 500811 + ... + 501250.

It is an arithmetic number, because the mean of its divisors is an integer number (21043302).

Almost surely, 2^220453420 is an apocalyptic number.

220453420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220453420 is an abundant number, since it is smaller than the sum of its proper divisors (284585828).

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

220453420 is a wasteful number, since it uses less digits than its factorization.

220453420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002081 (or 1002079 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 220453420 is about 14847.6738918930. The cubic root of 220453420 is about 604.0955179844.

The spelling of 220453420 in words is "two hundred twenty million, four hundred fifty-three thousand, four hundred twenty".