2123560880 has 40 divisors (see below), whose sum is σ = 5642606112. Its totient is φ = 728077824.

The previous prime is 2123560861. The next prime is 2123560883. The reversal of 2123560880 is 880653212.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×2123560880² = 9019021622132748800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 2123560880.

It is not an unprimeable number, because it can be changed into a prime (2123560883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1895477 + ... + 1896596.

Almost surely, 2^2123560880 is an apocalyptic number.

2123560880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123560880 is an abundant number, since it is smaller than the sum of its proper divisors (3519045232).

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

2123560880 is a wasteful number, since it uses less digits than its factorization.

2123560880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3792093 (or 3792087 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 2123560880 is about 46082.1101947383. The cubic root of 2123560880 is about 1285.3505036885.

The spelling of 2123560880 in words is "two billion, one hundred twenty-three million, five hundred sixty thousand, eight hundred eighty".