2159890412 has 12 divisors (see below), whose sum is σ = 3780133560. Its totient is φ = 1079852256.

The previous prime is 2159890399. The next prime is 2159890487. The reversal of 2159890412 is 2140989512.

It is a self number, because there is not a number n which added to its sum of digits gives 2159890412.

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 3 ways as a sum of consecutive naturals, for example, 80528 + ... + 103944.

It is an arithmetic number, because the mean of its divisors is an integer number (315011130).

Almost surely, 2^2159890412 is an apocalyptic number.

It is an amenable number.

2159890412 is a deficient number, since it is larger than the sum of its proper divisors (1620243148).

2159890412 is a wasteful number, since it uses less digits than its factorization.

2159890412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46480 (or 46478 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 2159890412 is about 46474.6211603710. The cubic root of 2159890412 is about 1292.6389525208.

The spelling of 2159890412 in words is "two billion, one hundred fifty-nine million, eight hundred ninety thousand, four hundred twelve".