20794068 has 18 divisors (see below), whose sum is σ = 52562874. Its totient is φ = 6931344.

The previous prime is 20794063. The next prime is 20794079. The reversal of 20794068 is 86049702.

It can be written as a sum of positive squares in only one way, i.e., 14653584 + 6140484 = 3828^2 + 2478^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 577613 = 20794068 / (2 + 0 + 7 + 9 + 4 + 0 + 6 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20794063) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 288771 + ... + 288842.

Almost surely, 2^20794068 is an apocalyptic number.

It is an amenable number.

20794068 is an abundant number, since it is smaller than the sum of its proper divisors (31768806).

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

20794068 is a wasteful number, since it uses less digits than its factorization.

20794068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577623 (or 577618 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 20794068 is about 4560.0513155007. The cubic root of 20794068 is about 274.9876269915.

The spelling of 20794068 in words is "twenty million, seven hundred ninety-four thousand, sixty-eight".