2321306 has 32 divisors (see below), whose sum is σ = 4085760. Its totient is φ = 979776.

The previous prime is 2321281. The next prime is 2321309. The reversal of 2321306 is 6031232.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321309) 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, 18215 + ... + 18341.

It is an arithmetic number, because the mean of its divisors is an integer number (127680).

2^2321306 is an apocalyptic number.

2321306 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2321306 is a deficient number, since it is larger than the sum of its proper divisors (1764454).

2321306 is a wasteful number, since it uses less digits than its factorization.

2321306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2321306 is about 1523.5832763587. The cubic root of 2321306 is about 132.4069549685.

Adding to 2321306 its reverse (6031232), we get a palindrome (8352538).

The spelling of 2321306 in words is "two million, three hundred twenty-one thousand, three hundred six".