20232645 has 8 divisors (see below), whose sum is σ = 32372256. Its totient is φ = 10790736.

The previous prime is 20232629. The next prime is 20232647. The reversal of 20232645 is 54623202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20232645 - 2⁴ = 20232629 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20232647) 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 7 ways as a sum of consecutive naturals, for example, 674407 + ... + 674436.

It is an arithmetic number, because the mean of its divisors is an integer number (4046532).

Almost surely, 2^20232645 is an apocalyptic number.

It is an amenable number.

20232645 is a deficient number, since it is larger than the sum of its proper divisors (12139611).

20232645 is a wasteful number, since it uses less digits than its factorization.

20232645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348851.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 20232645 is about 4498.0712533263. The cubic root of 20232645 is about 272.4901996868.

Adding to 20232645 its reverse (54623202), we get a palindrome (74855847).

The spelling of 20232645 in words is "twenty million, two hundred thirty-two thousand, six hundred forty-five".