2157344 has 24 divisors (see below), whose sum is σ = 4854528. Its totient is φ = 924480.

The previous prime is 2157343. The next prime is 2157361. The reversal of 2157344 is 4437512.

It is a d-powerful number, because it can be written as 2²¹ + 1 + 5 + 7² + 3¹⁰ + 4³ + 4⁵ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2157341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4592 + ... + 5039.

It is an arithmetic number, because the mean of its divisors is an integer number (202272).

2^2157344 is an apocalyptic number.

It is an amenable number.

2157344 is an abundant number, since it is smaller than the sum of its proper divisors (2697184).

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

2157344 is an equidigital number, since it uses as much as digits as its factorization.

2157344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9648 (or 9640 counting only the distinct ones).

The product of its digits is 3360, while the sum is 26.

The square root of 2157344 is about 1468.7899781793. The cubic root of 2157344 is about 129.2130765359.

The spelling of 2157344 in words is "two million, one hundred fifty-seven thousand, three hundred forty-four".