2123384928 has 96 divisors (see below), whose sum is σ = 6575708160. Its totient is φ = 587105280.

The previous prime is 2123384927. The next prime is 2123384953. The reversal of 2123384928 is 8294833212.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 2123384928.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123384927) 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, 30133 + ... + 71796.

It is an arithmetic number, because the mean of its divisors is an integer number (68496960).

Almost surely, 2^2123384928 is an apocalyptic number.

2123384928 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2123384928 is an abundant number, since it is smaller than the sum of its proper divisors (4452323232).

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

2123384928 is a wasteful number, since it uses less digits than its factorization.

2123384928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101980 (or 101972 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 2123384928 is about 46080.2010412281. The cubic root of 2123384928 is about 1285.3150025890.

The spelling of 2123384928 in words is "two billion, one hundred twenty-three million, three hundred eighty-four thousand, nine hundred twenty-eight".