2159569404 has 24 divisors (see below), whose sum is σ = 5598883920. Its totient is φ = 719856432.

The previous prime is 2159569403. The next prime is 2159569409. The reversal of 2159569404 is 4049659512.

It is a self number, because there is not a number n which added to its sum of digits gives 2159569404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159569403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9997899 + ... + 9998114.

It is an arithmetic number, because the mean of its divisors is an integer number (233286830).

Almost surely, 2^2159569404 is an apocalyptic number.

It is an amenable number.

2159569404 is an abundant number, since it is smaller than the sum of its proper divisors (3439314516).

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

2159569404 is a wasteful number, since it uses less digits than its factorization.

2159569404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19996026 (or 19996018 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 2159569404 is about 46471.1674482146. The cubic root of 2159569404 is about 1292.5749109995.

The spelling of 2159569404 in words is "two billion, one hundred fifty-nine million, five hundred sixty-nine thousand, four hundred four".