20312322 has 16 divisors (see below), whose sum is σ = 41139840. Its totient is φ = 6684912.

The previous prime is 20312309. The next prime is 20312351. The reversal of 20312322 is 22321302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20953 + ... + 21900.

It is an arithmetic number, because the mean of its divisors is an integer number (2571240).

Almost surely, 2^20312322 is an apocalyptic number.

20312322 is an abundant number, since it is smaller than the sum of its proper divisors (20827518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20312322 is a wasteful number, since it uses less digits than its factorization.

20312322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42937.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 20312322 is about 4506.9193469597. The cubic root of 20312322 is about 272.8474237663.

Adding to 20312322 its reverse (22321302), we get a palindrome (42633624).

The spelling of 20312322 in words is "twenty million, three hundred twelve thousand, three hundred twenty-two".