2180044420 has 48 divisors (see below), whose sum is σ = 5028589440. Its totient is φ = 790200576.

The previous prime is 2180044417. The next prime is 2180044469. The reversal of 2180044420 is 244400812.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115977 + ... + 133456.

It is an arithmetic number, because the mean of its divisors is an integer number (104762280).

Almost surely, 2^2180044420 is an apocalyptic number.

2180044420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2180044420 is an abundant number, since it is smaller than the sum of its proper divisors (2848545020).

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

2180044420 is a wasteful number, since it uses less digits than its factorization.

2180044420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249484 (or 249482 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 2180044420 is about 46690.9458032283. The cubic root of 2180044420 is about 1296.6470637448.

The spelling of 2180044420 in words is "two billion, one hundred eighty million, forty-four thousand, four hundred twenty".