20790736 has 20 divisors (see below), whose sum is σ = 40469632. Its totient is φ = 10346976.

The previous prime is 20790727. The next prime is 20790743. The reversal of 20790736 is 63709702.

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, 655 + ... + 6481.

Almost surely, 2^20790736 is an apocalyptic number.

It is an amenable number.

20790736 is a deficient number, since it is larger than the sum of its proper divisors (19678896).

20790736 is a wasteful number, since it uses less digits than its factorization.

20790736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6058 (or 6052 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 20790736 is about 4559.6859540982. The cubic root of 20790736 is about 274.9729383839.

The spelling of 20790736 in words is "twenty million, seven hundred ninety thousand, seven hundred thirty-six".