2179310940 has 48 divisors (see below), whose sum is σ = 6780080160. Its totient is φ = 581149440.

The previous prime is 2179310933. The next prime is 2179310941. The reversal of 2179310940 is 490139712.

It is a super-3 number, since 3×2179310940³ (a number of 29 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2179310895 and 2179310904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2179310941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2017341 + ... + 2018420.

It is an arithmetic number, because the mean of its divisors is an integer number (141251670).

Almost surely, 2^2179310940 is an apocalyptic number.

2179310940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2179310940 is an abundant number, since it is smaller than the sum of its proper divisors (4600769220).

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

2179310940 is a wasteful number, since it uses less digits than its factorization.

2179310940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4035779 (or 4035771 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 2179310940 is about 46683.0905146607. The cubic root of 2179310940 is about 1296.5016276608.

The spelling of 2179310940 in words is "two billion, one hundred seventy-nine million, three hundred ten thousand, nine hundred forty".