2568321 has 32 divisors (see below), whose sum is σ = 4423680. Its totient is φ = 1442448.

The previous prime is 2568299. The next prime is 2568323. The reversal of 2568321 is 1238652.

It is not a de Polignac number, because 2568321 - 2⁹ = 2567809 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2568323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20160 + ... + 20286.

It is an arithmetic number, because the mean of its divisors is an integer number (138240).

2^2568321 is an apocalyptic number.

2568321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2568321 is a deficient number, since it is larger than the sum of its proper divisors (1855359).

2568321 is a wasteful number, since it uses less digits than its factorization.

2568321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 244 counting only the distinct ones).

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

The square root of 2568321 is about 1602.5982029192. The cubic root of 2568321 is about 136.9461311648.

The spelling of 2568321 in words is "two million, five hundred sixty-eight thousand, three hundred twenty-one".