20316369 has 4 divisors (see below), whose sum is σ = 27088496. Its totient is φ = 13544244.

The previous prime is 20316347. The next prime is 20316389. The reversal of 20316369 is 96361302.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20316369 - 2⁸ = 20316113 is a prime.

It is a super-2 number, since 2×20316369² = 825509698688322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20316319) 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, 3386059 + ... + 3386064.

It is an arithmetic number, because the mean of its divisors is an integer number (6772124).

Almost surely, 2^20316369 is an apocalyptic number.

It is an amenable number.

20316369 is a deficient number, since it is larger than the sum of its proper divisors (6772127).

20316369 is an equidigital number, since it uses as much as digits as its factorization.

20316369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6772126.

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

The square root of 20316369 is about 4507.3683009046. The cubic root of 20316369 is about 272.8655431488.

The spelling of 20316369 in words is "twenty million, three hundred sixteen thousand, three hundred sixty-nine".