2159244 has 24 divisors (see below), whose sum is σ = 5598320. Its totient is φ = 719712.

The previous prime is 2159239. The next prime is 2159249. The reversal of 2159244 is 4429512.

It is an interprime number because it is at equal distance from previous prime (2159239) and next prime (2159249).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2159249) 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, 9889 + ... + 10104.

2^2159244 is an apocalyptic number.

It is an amenable number.

2159244 is an abundant number, since it is smaller than the sum of its proper divisors (3439076).

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

2159244 is a wasteful number, since it uses less digits than its factorization.

2159244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20006 (or 19998 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2159244 is about 1469.4366267383. The cubic root of 2159244 is about 129.2509985993.

The spelling of 2159244 in words is "two million, one hundred fifty-nine thousand, two hundred forty-four".