2164944 has 80 divisors (see below), whose sum is σ = 6106752. Its totient is φ = 658944.

The previous prime is 2164927. The next prime is 2164963. The reversal of 2164944 is 4494612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40822 + ... + 40874.

2^2164944 is an apocalyptic number.

2164944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2164944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3053376).

2164944 is an abundant number, since it is smaller than the sum of its proper divisors (3941808).

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

2164944 is a wasteful number, since it uses less digits than its factorization.

2164944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 118 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 2164944 is about 1471.3748672585. The cubic root of 2164944 is about 129.3646314825.

The spelling of 2164944 in words is "two million, one hundred sixty-four thousand, nine hundred forty-four".