20368206 has 32 divisors (see below), whose sum is σ = 45434880. Its totient is φ = 6763608.

The previous prime is 20368177. The next prime is 20368211. The reversal of 20368206 is 60286302.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20368206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18195 + ... + 19281.

It is an arithmetic number, because the mean of its divisors is an integer number (1419840).

Almost surely, 2^20368206 is an apocalyptic number.

20368206 is an abundant number, since it is smaller than the sum of its proper divisors (25066674).

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

20368206 is a wasteful number, since it uses less digits than its factorization.

20368206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445 (or 1439 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 20368206 is about 4513.1148888545. The cubic root of 20368206 is about 273.0974172321.

The spelling of 20368206 in words is "twenty million, three hundred sixty-eight thousand, two hundred six".