2320257 has 16 divisors (see below), whose sum is σ = 3253760. Its totient is φ = 1468800.

The previous prime is 2320247. The next prime is 2320259. The reversal of 2320257 is 7520232.

It is not a de Polignac number, because 2320257 - 2⁶ = 2320193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2320259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5469 + ... + 5877.

It is an arithmetic number, because the mean of its divisors is an integer number (203360).

2^2320257 is an apocalyptic number.

It is an amenable number.

2320257 is a deficient number, since it is larger than the sum of its proper divisors (933503).

2320257 is a wasteful number, since it uses less digits than its factorization.

2320257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 2320257 is about 1523.2389832196. The cubic root of 2320257 is about 132.3870070278.

Adding to 2320257 its reverse (7520232), we get a palindrome (9840489).

The spelling of 2320257 in words is "two million, three hundred twenty thousand, two hundred fifty-seven".