20938336 has 12 divisors (see below), whose sum is σ = 41222412. Its totient is φ = 10469152.

The previous prime is 20938297. The next prime is 20938367. The reversal of 20938336 is 63383902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327130 + ... + 327193.

It is an arithmetic number, because the mean of its divisors is an integer number (3435201).

Almost surely, 2^20938336 is an apocalyptic number.

It is an amenable number.

20938336 is a deficient number, since it is larger than the sum of its proper divisors (20284076).

20938336 is an equidigital number, since it uses as much as digits as its factorization.

20938336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654333 (or 654325 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 20938336 is about 4575.8426546375. The cubic root of 20938336 is about 275.6221111442.

The spelling of 20938336 in words is "twenty million, nine hundred thirty-eight thousand, three hundred thirty-six".