220440264420 has 48 divisors (see below), whose sum is σ = 649718677440. Its totient is φ = 55690171776.

The previous prime is 220440264379. The next prime is 220440264431. The reversal of 220440264420 is 24462044022.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 96683187 + ... + 96685466.

It is an arithmetic number, because the mean of its divisors is an integer number (13535805780).

Almost surely, 2^220440264420 is an apocalyptic number.

220440264420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220440264420 is an abundant number, since it is smaller than the sum of its proper divisors (429278413020).

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

220440264420 is a wasteful number, since it uses less digits than its factorization.

220440264420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193368684 (or 193368682 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

The spelling of 220440264420 in words is "two hundred twenty billion, four hundred forty million, two hundred sixty-four thousand, four hundred twenty".