20316824 has 16 divisors (see below), whose sum is σ = 41557320. Its totient is φ = 9234880.

The previous prime is 20316817. The next prime is 20316841. The reversal of 20316824 is 42861302.

It is a junction number, because it is equal to n+sod(n) for n = 20316793 and 20316802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115349 + ... + 115524.

Almost surely, 2^20316824 is an apocalyptic number.

It is an amenable number.

20316824 is an abundant number, since it is smaller than the sum of its proper divisors (21240496).

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

20316824 is a wasteful number, since it uses less digits than its factorization.

20316824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230890 (or 230886 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 20316824 is about 4507.4187735333. The cubic root of 20316824 is about 272.8675801417.

The spelling of 20316824 in words is "twenty million, three hundred sixteen thousand, eight hundred twenty-four".