220051420 has 24 divisors (see below), whose sum is σ = 478044000. Its totient is φ = 84985152.

The previous prime is 220051393. The next prime is 220051421. The reversal of 220051420 is 24150022.

It is a junction number, because it is equal to n+sod(n) for n = 220051394 and 220051403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220051421) 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, 189120 + ... + 190279.

It is an arithmetic number, because the mean of its divisors is an integer number (19918500).

Almost surely, 2^220051420 is an apocalyptic number.

220051420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220051420 is an abundant number, since it is smaller than the sum of its proper divisors (257992580).

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

220051420 is a wasteful number, since it uses less digits than its factorization.

220051420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379437 (or 379435 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 220051420 is about 14834.1302407657. The cubic root of 220051420 is about 603.7281022597.

The spelling of 220051420 in words is "two hundred twenty million, fifty-one thousand, four hundred twenty".