2159342405 has 12 divisors (see below), whose sum is σ = 2848191276. Its totient is φ = 1570430400.

The previous prime is 2159342399. The next prime is 2159342441. The reversal of 2159342405 is 5042439512.

It can be written as a sum of positive squares in 2 ways, for example, as 1389723841 + 769618564 = 37279^2 + 27742^2 .

It is not a de Polignac number, because 2159342405 - 2¹⁰ = 2159341381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1783976 + ... + 1785185.

It is an arithmetic number, because the mean of its divisors is an integer number (237349273).

Almost surely, 2^2159342405 is an apocalyptic number.

It is an amenable number.

2159342405 is a deficient number, since it is larger than the sum of its proper divisors (688848871).

2159342405 is a wasteful number, since it uses less digits than its factorization.

2159342405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3569188 (or 3569177 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 2159342405 is about 46468.7250201681. The cubic root of 2159342405 is about 1292.5296205676.

The spelling of 2159342405 in words is "two billion, one hundred fifty-nine million, three hundred forty-two thousand, four hundred five".