2123644260 has 24 divisors (see below), whose sum is σ = 5946204096. Its totient is φ = 566305120.

The previous prime is 2123644217. The next prime is 2123644297. The reversal of 2123644260 is 624463212.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17696976 + ... + 17697095.

It is an arithmetic number, because the mean of its divisors is an integer number (247758504).

Almost surely, 2^2123644260 is an apocalyptic number.

2123644260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123644260 is an abundant number, since it is smaller than the sum of its proper divisors (3822559836).

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

2123644260 is a wasteful number, since it uses less digits than its factorization.

2123644260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35394083 (or 35394081 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 2123644260 is about 46083.0148753312. The cubic root of 2123644260 is about 1285.3673262378.

The spelling of 2123644260 in words is "two billion, one hundred twenty-three million, six hundred forty-four thousand, two hundred sixty".