2171132404 has 24 divisors (see below), whose sum is σ = 4360446720. Its totient is φ = 926589216.

The previous prime is 2171132401. The next prime is 2171132417. The reversal of 2171132404 is 4042311712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2171132401) 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, 155527 + ... + 168910.

It is an arithmetic number, because the mean of its divisors is an integer number (181685280).

Almost surely, 2^2171132404 is an apocalyptic number.

It is an amenable number.

2171132404 is an abundant number, since it is smaller than the sum of its proper divisors (2189314316).

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

2171132404 is a wasteful number, since it uses less digits than its factorization.

2171132404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324687 (or 324685 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 2171132404 is about 46595.4118342139. The cubic root of 2171132404 is about 1294.8777539480.

The spelling of 2171132404 in words is "two billion, one hundred seventy-one million, one hundred thirty-two thousand, four hundred four".