20344116 has 24 divisors (see below), whose sum is σ = 51121504. Its totient is φ = 6259680.

The previous prime is 20344111. The next prime is 20344123. The reversal of 20344116 is 61144302.

It is a Smith number, since the sum of its digits (21) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 20344092 and 20344101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65050 + ... + 65361.

Almost surely, 2^20344116 is an apocalyptic number.

20344116 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20344116 is an abundant number, since it is smaller than the sum of its proper divisors (30777388).

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

20344116 is a wasteful number, since it uses less digits than its factorization.

20344116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130431 (or 130429 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 20344116 is about 4510.4452108412. The cubic root of 20344116 is about 272.9897083160.

Adding to 20344116 its reverse (61144302), we get a palindrome (81488418).

The spelling of 20344116 in words is "twenty million, three hundred forty-four thousand, one hundred sixteen".