2179120944 has 720 divisors, whose sum is σ = 8422794240. Its totient is φ = 479001600.

The previous prime is 2179120939. The next prime is 2179120967. The reversal of 2179120944 is 4490219712.

It is a super-2 number, since 2×2179120944² = 9497136177158902272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 70294209 + ... + 70294239.

Almost surely, 2^2179120944 is an apocalyptic number.

2179120944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2179120944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4211397120).

2179120944 is an abundant number, since it is smaller than the sum of its proper divisors (6243673296).

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

2179120944 is a wasteful number, since it uses less digits than its factorization.

2179120944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 2179120944 is about 46681.0555150588. The cubic root of 2179120944 is about 1296.4639495003.

The spelling of 2179120944 in words is "two billion, one hundred seventy-nine million, one hundred twenty thousand, nine hundred forty-four".