2171434401 has 24 divisors (see below), whose sum is σ = 3244340736. Its totient is φ = 1398049920.

The previous prime is 2171434387. The next prime is 2171434403. The reversal of 2171434401 is 1044341712.

2171434401 is a `hidden beast` number, since 217 + 1 + 4 + 3 + 440 + 1 = 666.

It is not a de Polignac number, because 2171434401 - 2⁹ = 2171433889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2171434403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132601 + ... + 148073.

It is an arithmetic number, because the mean of its divisors is an integer number (135180864).

Almost surely, 2^2171434401 is an apocalyptic number.

It is an amenable number.

2171434401 is a deficient number, since it is larger than the sum of its proper divisors (1072906335).

2171434401 is a wasteful number, since it uses less digits than its factorization.

2171434401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16013 (or 16010 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 2171434401 is about 46598.6523517580. The cubic root of 2171434401 is about 1294.9377888353.

The spelling of 2171434401 in words is "two billion, one hundred seventy-one million, four hundred thirty-four thousand, four hundred one".