20368959 has 8 divisors (see below), whose sum is σ = 29247792. Its totient is φ = 12534720.

The previous prime is 20368951. The next prime is 20368967. The reversal of 20368959 is 95986302.

It is an interprime number because it is at equal distance from previous prime (20368951) and next prime (20368967).

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

It is not a de Polignac number, because 20368959 - 2³ = 20368951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20368959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20368951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261102 + ... + 261179.

It is an arithmetic number, because the mean of its divisors is an integer number (3655974).

Almost surely, 2^20368959 is an apocalyptic number.

20368959 is a deficient number, since it is larger than the sum of its proper divisors (8878833).

20368959 is a wasteful number, since it uses less digits than its factorization.

20368959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522297.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 20368959 is about 4513.1983116189. The cubic root of 20368959 is about 273.1007826049.

The spelling of 20368959 in words is "twenty million, three hundred sixty-eight thousand, nine hundred fifty-nine".