20796090 has 128 divisors (see below), whose sum is σ = 60825600. Its totient is φ = 4544064.

The previous prime is 20796077. The next prime is 20796179. The reversal of 20796090 is 9069702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 442447 + ... + 442493.

It is an arithmetic number, because the mean of its divisors is an integer number (475200).

Almost surely, 2^20796090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20796090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30412800).

20796090 is an abundant number, since it is smaller than the sum of its proper divisors (40029510).

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

20796090 is a wasteful number, since it uses less digits than its factorization.

20796090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 20796090 is about 4560.2730181427. The cubic root of 20796090 is about 274.9965399014.

The spelling of 20796090 in words is "twenty million, seven hundred ninety-six thousand, ninety".