20312422 has 8 divisors (see below), whose sum is σ = 32812416. Its totient is φ = 9374952.

The previous prime is 20312419. The next prime is 20312429. The reversal of 20312422 is 22421302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20312396 and 20312405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390598 + ... + 390649.

It is an arithmetic number, because the mean of its divisors is an integer number (4101552).

Almost surely, 2^20312422 is an apocalyptic number.

20312422 is a deficient number, since it is larger than the sum of its proper divisors (12499994).

20312422 is a wasteful number, since it uses less digits than its factorization.

20312422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781262.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 20312422 is about 4506.9304409986. The cubic root of 20312422 is about 272.8478715191.

Adding to 20312422 its reverse (22421302), we get a palindrome (42733724).

The spelling of 20312422 in words is "twenty million, three hundred twelve thousand, four hundred twenty-two".