20233206 has 32 divisors (see below), whose sum is σ = 51386880. Its totient is φ = 5780808.

The previous prime is 20233193. The next prime is 20233207. The reversal of 20233206 is 60233202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20233207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26386 + ... + 27141.

It is an arithmetic number, because the mean of its divisors is an integer number (1605840).

Almost surely, 2^20233206 is an apocalyptic number.

20233206 is an abundant number, since it is smaller than the sum of its proper divisors (31153674).

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

20233206 is a wasteful number, since it uses less digits than its factorization.

20233206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53545 (or 53539 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 20233206 is about 4498.1336129555. The cubic root of 20233206 is about 272.4927181512.

Adding to 20233206 its reverse (60233202), we get a palindrome (80466408).

The spelling of 20233206 in words is "twenty million, two hundred thirty-three thousand, two hundred six".