20323416 has 32 divisors (see below), whose sum is σ = 50929200. Its totient is φ = 6758400.

The previous prime is 20323379. The next prime is 20323423. The reversal of 20323416 is 61432302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20323392 and 20323401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13720 + ... + 15128.

Almost surely, 2^20323416 is an apocalyptic number.

It is an amenable number.

20323416 is an abundant number, since it is smaller than the sum of its proper divisors (30605784).

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

20323416 is a wasteful number, since it uses less digits than its factorization.

20323416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019 (or 2015 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 20323416 is about 4508.1499531404. The cubic root of 20323416 is about 272.8970885036.

Adding to 20323416 its reverse (61432302), we get a palindrome (81755718).

The spelling of 20323416 in words is "twenty million, three hundred twenty-three thousand, four hundred sixteen".