20790718 has 12 divisors (see below), whose sum is σ = 33770088. Its totient is φ = 9595560.

The previous prime is 20790713. The next prime is 20790727. The reversal of 20790718 is 81709702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20790713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30418 + ... + 31093.

It is an arithmetic number, because the mean of its divisors is an integer number (2814174).

Almost surely, 2^20790718 is an apocalyptic number.

20790718 is a deficient number, since it is larger than the sum of its proper divisors (12979370).

20790718 is a wasteful number, since it uses less digits than its factorization.

20790718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61539 (or 61526 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 20790718 is about 4559.6839802776. The cubic root of 20790718 is about 274.9728590294.

The spelling of 20790718 in words is "twenty million, seven hundred ninety thousand, seven hundred eighteen".