20798366 has 16 divisors (see below), whose sum is σ = 32651424. Its totient is φ = 9925344.

The previous prime is 20798359. The next prime is 20798387. The reversal of 20798366 is 66389702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1271 + ... + 6573.

It is an arithmetic number, because the mean of its divisors is an integer number (2040714).

Almost surely, 2^20798366 is an apocalyptic number.

20798366 is a deficient number, since it is larger than the sum of its proper divisors (11853058).

20798366 is a wasteful number, since it uses less digits than its factorization.

20798366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5395.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 20798366 is about 4560.5225577778. The cubic root of 20798366 is about 275.0065717438.

The spelling of 20798366 in words is "twenty million, seven hundred ninety-eight thousand, three hundred sixty-six".