20790336 has 112 divisors (see below), whose sum is σ = 65024000. Its totient is φ = 5736960.

The previous prime is 20790323. The next prime is 20790349. The reversal of 20790336 is 63309702.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20790323) and next prime (20790349).

It is a tau number, because it is divible by the number of its divisors (112).

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 15 ways as a sum of consecutive naturals, for example, 41415 + ... + 41913.

Almost surely, 2^20790336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20790336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32512000).

20790336 is an abundant number, since it is smaller than the sum of its proper divisors (44233664).

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

20790336 is a wasteful number, since it uses less digits than its factorization.

20790336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 20790336 is about 4559.6420912172. The cubic root of 20790336 is about 274.9711749401.

The spelling of 20790336 in words is "twenty million, seven hundred ninety thousand, three hundred thirty-six".