20316396 has 24 divisors (see below), whose sum is σ = 49900480. Its totient is φ = 6415632.

The previous prime is 20316391. The next prime is 20316409. The reversal of 20316396 is 69361302.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20316391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44326 + ... + 44781.

Almost surely, 2^20316396 is an apocalyptic number.

It is an amenable number.

20316396 is an abundant number, since it is smaller than the sum of its proper divisors (29584084).

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

20316396 is a wasteful number, since it uses less digits than its factorization.

20316396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89133 (or 89131 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 20316396 is about 4507.3712959995. The cubic root of 20316396 is about 272.8656640262.

Adding to 20316396 its reverse (69361302), we get a palindrome (89677698).

The spelling of 20316396 in words is "twenty million, three hundred sixteen thousand, three hundred ninety-six".