20368233 has 8 divisors (see below), whose sum is σ = 30175200. Its totient is φ = 13578804.

The previous prime is 20368223. The next prime is 20368253. The reversal of 20368233 is 33286302.

It is not a de Polignac number, because 20368233 - 2¹⁸ = 20106089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 754379 = 20368233 / (2 + 0 + 3 + 6 + 8 + 2 + 3 + 3).

It is a junction number, because it is equal to n+sod(n) for n = 20368197 and 20368206.

It is not an unprimeable number, because it can be changed into a prime (20368213) 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, 377163 + ... + 377216.

It is an arithmetic number, because the mean of its divisors is an integer number (3771900).

Almost surely, 2^20368233 is an apocalyptic number.

It is an amenable number.

20368233 is a deficient number, since it is larger than the sum of its proper divisors (9806967).

20368233 is an equidigital number, since it uses as much as digits as its factorization.

20368233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754388 (or 754382 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 20368233 is about 4513.1178801356. The cubic root of 20368233 is about 273.0975379043.

The spelling of 20368233 in words is "twenty million, three hundred sixty-eight thousand, two hundred thirty-three".