23184640404 has 72 divisors (see below), whose sum is σ = 58862322792. Its totient is φ = 7694438400.

The previous prime is 23184640379. The next prime is 23184640421. The reversal of 23184640404 is 40404648132.

23184640404 is a `hidden beast` number, since 2 + 3 + 1 + 8 + 4 + 640 + 4 + 0 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1239180804 + 21945459600 = 35202^2 + 148140^2 .

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

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

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 12872304 + ... + 12874104.

It is an arithmetic number, because the mean of its divisors is an integer number (817532261).

Almost surely, 2^23184640404 is an apocalyptic number.

It is an amenable number.

23184640404 is an abundant number, since it is smaller than the sum of its proper divisors (35677682388).

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

23184640404 is a wasteful number, since it uses less digits than its factorization.

23184640404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3177 (or 3172 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The spelling of 23184640404 in words is "twenty-three billion, one hundred eighty-four million, six hundred forty thousand, four hundred four".