20323245 has 16 divisors (see below), whose sum is σ = 34430400. Its totient is φ = 10201344.

The previous prime is 20323201. The next prime is 20323267. The reversal of 20323245 is 54232302.

It is not a de Polignac number, because 20323245 - 2⁶ = 20323181 is a prime.

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, 39595 + ... + 40104.

It is an arithmetic number, because the mean of its divisors is an integer number (2151900).

Almost surely, 2^20323245 is an apocalyptic number.

It is an amenable number.

20323245 is a deficient number, since it is larger than the sum of its proper divisors (14107155).

20323245 is a wasteful number, since it uses less digits than its factorization.

20323245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79724.

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

The square root of 20323245 is about 4508.1309874492. The cubic root of 20323245 is about 272.8963231215.

Adding to 20323245 its reverse (54232302), we get a palindrome (74555547).

The spelling of 20323245 in words is "twenty million, three hundred twenty-three thousand, two hundred forty-five".