2159994 has 16 divisors (see below), whose sum is σ = 4334400. Its totient is φ = 717600.

The previous prime is 2159959. The next prime is 2160001. The reversal of 2159994 is 4999512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3294 + ... + 3894.

It is an arithmetic number, because the mean of its divisors is an integer number (270900).

2^2159994 is an apocalyptic number.

2159994 is an abundant number, since it is smaller than the sum of its proper divisors (2174406).

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

2159994 is a wasteful number, since it uses less digits than its factorization.

2159994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205.

The product of its digits is 29160, while the sum is 39.

The square root of 2159994 is about 1469.6918044270. The cubic root of 2159994 is about 129.2659617110.

The spelling of 2159994 in words is "two million, one hundred fifty-nine thousand, nine hundred ninety-four".