220676420 has 24 divisors (see below), whose sum is σ = 464604504. Its totient is φ = 88045056.

The previous prime is 220676413. The next prime is 220676447. The reversal of 220676420 is 24676022.

It can be written as a sum of positive squares in 4 ways, for example, as 2050624 + 218625796 = 1432^2 + 14786^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5957 + ... + 21836.

It is an arithmetic number, because the mean of its divisors is an integer number (19358521).

Almost surely, 2^220676420 is an apocalyptic number.

220676420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220676420 is an abundant number, since it is smaller than the sum of its proper divisors (243928084).

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

220676420 is a wasteful number, since it uses less digits than its factorization.

220676420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28199 (or 28197 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 220676420 is about 14855.1815875808. The cubic root of 220676420 is about 604.2991405953.

The spelling of 220676420 in words is "two hundred twenty million, six hundred seventy-six thousand, four hundred twenty".