2161593924 has 24 divisors (see below), whose sum is σ = 5764250688. Its totient is φ = 617598240.

The previous prime is 2161593901. The next prime is 2161593943. The reversal of 2161593924 is 4293951612.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12866547 + ... + 12866714.

It is an arithmetic number, because the mean of its divisors is an integer number (240177112).

Almost surely, 2^2161593924 is an apocalyptic number.

It is an amenable number.

2161593924 is an abundant number, since it is smaller than the sum of its proper divisors (3602656764).

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

2161593924 is a wasteful number, since it uses less digits than its factorization.

2161593924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25733275 (or 25733273 counting only the distinct ones).

The product of its digits is 116640, while the sum is 42.

The square root of 2161593924 is about 46492.9448841434. The cubic root of 2161593924 is about 1292.9786992805.

The spelling of 2161593924 in words is "two billion, one hundred sixty-one million, five hundred ninety-three thousand, nine hundred twenty-four".