20322312 has 32 divisors (see below), whose sum is σ = 51305280. Its totient is φ = 6707520.

The previous prime is 20322307. The next prime is 20322331. The reversal of 20322312 is 21322302.

It is a junction number, because it is equal to n+sod(n) for n = 20322291 and 20322300.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1639 + ... + 6582.

It is an arithmetic number, because the mean of its divisors is an integer number (1603290).

Almost surely, 2^20322312 is an apocalyptic number.

It is an amenable number.

20322312 is an abundant number, since it is smaller than the sum of its proper divisors (30982968).

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

20322312 is a wasteful number, since it uses less digits than its factorization.

20322312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8333 (or 8329 counting only the distinct ones).

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

The square root of 20322312 is about 4508.0275065709. The cubic root of 20322312 is about 272.8921470140.

Adding to 20322312 its reverse (21322302), we get a palindrome (41644614).

The spelling of 20322312 in words is "twenty million, three hundred twenty-two thousand, three hundred twelve".