20322430 has 16 divisors (see below), whose sum is σ = 36679680. Its totient is φ = 8106912.

The previous prime is 20322427. The next prime is 20322433. The reversal of 20322430 is 3422302.

It is an interprime number because it is at equal distance from previous prime (20322427) and next prime (20322433).

It is a super-2 number, since 2×20322430² = 826002322209800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20322433) by changing a digit.

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, 1411 + ... + 6529.

It is an arithmetic number, because the mean of its divisors is an integer number (2292480).

Almost surely, 2^20322430 is an apocalyptic number.

20322430 is a deficient number, since it is larger than the sum of its proper divisors (16357250).

20322430 is a wasteful number, since it uses less digits than its factorization.

20322430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5523.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 20322430 is about 4508.0405943159. The cubic root of 20322430 is about 272.8926751890.

Adding to 20322430 its reverse (3422302), we get a palindrome (23744732).

The spelling of 20322430 in words is "twenty million, three hundred twenty-two thousand, four hundred thirty".