20790516 has 24 divisors (see below), whose sum is σ = 48625920. Its totient is φ = 6913792.

The previous prime is 20790467. The next prime is 20790527. The reversal of 20790516 is 61509702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3940 + ... + 7556.

It is an arithmetic number, because the mean of its divisors is an integer number (2026080).

Almost surely, 2^20790516 is an apocalyptic number.

It is an amenable number.

20790516 is an abundant number, since it is smaller than the sum of its proper divisors (27835404).

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

20790516 is a wasteful number, since it uses less digits than its factorization.

20790516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4103 (or 4101 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 20790516 is about 4559.6618295659. The cubic root of 20790516 is about 274.9719684926.

The spelling of 20790516 in words is "twenty million, seven hundred ninety thousand, five hundred sixteen".