2157324 has 24 divisors (see below), whose sum is σ = 5421360. Its totient is φ = 663744.

The previous prime is 2157319. The next prime is 2157329. The reversal of 2157324 is 4237512.

2157324 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2157319) and next prime (2157329).

It is a d-powerful number, because it can be written as 2¹¹ + 1 + 5⁹ + 7⁵ + 3¹¹ + 2¹³ + 4 .

It is a junction number, because it is equal to n+sod(n) for n = 2157294 and 2157303.

It is not an unprimeable number, because it can be changed into a prime (2157329) 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, 6759 + ... + 7070.

It is an arithmetic number, because the mean of its divisors is an integer number (225890).

2^2157324 is an apocalyptic number.

It is an amenable number.

2157324 is an abundant number, since it is smaller than the sum of its proper divisors (3264036).

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

2157324 is a wasteful number, since it uses less digits than its factorization.

2157324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13849 (or 13847 counting only the distinct ones).

The product of its digits is 1680, while the sum is 24.

The square root of 2157324 is about 1468.7831698382. The cubic root of 2157324 is about 129.2126772379.

The spelling of 2157324 in words is "two million, one hundred fifty-seven thousand, three hundred twenty-four".