20233245 has 16 divisors (see below), whose sum is σ = 32591232. Its totient is φ = 10718400.

The previous prime is 20233237. The next prime is 20233249. The reversal of 20233245 is 54233202.

It is not a de Polignac number, because 20233245 - 2³ = 20233237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20233249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2202 + ... + 6731.

It is an arithmetic number, because the mean of its divisors is an integer number (2036952).

Almost surely, 2^20233245 is an apocalyptic number.

It is an amenable number.

20233245 is a deficient number, since it is larger than the sum of its proper divisors (12357987).

20233245 is a wasteful number, since it uses less digits than its factorization.

20233245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9092.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 20233245 is about 4498.1379480847. The cubic root of 20233245 is about 272.4928932299.

Adding to 20233245 its reverse (54233202), we get a palindrome (74466447).

The spelling of 20233245 in words is "twenty million, two hundred thirty-three thousand, two hundred forty-five".