2321630 has 16 divisors (see below), whose sum is σ = 4205520. Its totient is φ = 922752.

The previous prime is 2321623. The next prime is 2321647. The reversal of 2321630 is 361232.

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 2321599 and 2321608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1142 + ... + 2438.

It is an arithmetic number, because the mean of its divisors is an integer number (262845).

2^2321630 is an apocalyptic number.

2321630 is a deficient number, since it is larger than the sum of its proper divisors (1883890).

2321630 is a wasteful number, since it uses less digits than its factorization.

2321630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483.

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

The square root of 2321630 is about 1523.6896009358. The cubic root of 2321630 is about 132.4131149861.

Adding to 2321630 its reverse (361232), we get a palindrome (2682862).

The spelling of 2321630 in words is "two million, three hundred twenty-one thousand, six hundred thirty".