20791794 has 32 divisors (see below), whose sum is σ = 42747264. Its totient is φ = 6739200.

The previous prime is 20791783. The next prime is 20791801. The reversal of 20791794 is 49719702.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47802 + ... + 48234.

It is an arithmetic number, because the mean of its divisors is an integer number (1335852).

Almost surely, 2^20791794 is an apocalyptic number.

20791794 is an abundant number, since it is smaller than the sum of its proper divisors (21955470).

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

20791794 is a wasteful number, since it uses less digits than its factorization.

20791794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 20791794 is about 4559.8019693842. The cubic root of 20791794 is about 274.9776025836.

The spelling of 20791794 in words is "twenty million, seven hundred ninety-one thousand, seven hundred ninety-four".