20313422 has 4 divisors (see below), whose sum is σ = 30470136. Its totient is φ = 10156710.

The previous prime is 20313421. The next prime is 20313437. The reversal of 20313422 is 22431302.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×20313422² = 825270226700168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20313422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5078354 + ... + 5078357.

It is an arithmetic number, because the mean of its divisors is an integer number (7617534).

Almost surely, 2^20313422 is an apocalyptic number.

20313422 is a deficient number, since it is larger than the sum of its proper divisors (10156714).

20313422 is a wasteful number, since it uses less digits than its factorization.

20313422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10156713.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 20313422 is about 4507.0413798855. The cubic root of 20313422 is about 272.8523489664.

Adding to 20313422 its reverse (22431302), we get a palindrome (42744724).

The spelling of 20313422 in words is "twenty million, three hundred thirteen thousand, four hundred twenty-two".