20799518 has 8 divisors (see below), whose sum is σ = 31363200. Its totient is φ = 10345120.

The previous prime is 20799503. The next prime is 20799563. The reversal of 20799518 is 81599702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26843 + ... + 27606.

It is an arithmetic number, because the mean of its divisors is an integer number (3920400).

Almost surely, 2^20799518 is an apocalyptic number.

20799518 is a deficient number, since it is larger than the sum of its proper divisors (10563682).

20799518 is a wasteful number, since it uses less digits than its factorization.

20799518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54642.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 20799518 is about 4560.6488573448. The cubic root of 20799518 is about 275.0116490933.

The spelling of 20799518 in words is "twenty million, seven hundred ninety-nine thousand, five hundred eighteen".