20452303 has 8 divisors (see below), whose sum is σ = 21571200. Its totient is φ = 19337688.

The previous prime is 20452297. The next prime is 20452307. The reversal of 20452303 is 30325402.

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

It is a cyclic number.

It is not a de Polignac number, because 20452303 - 2⁹ = 20451791 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20452307) 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, 15300 + ... + 16582.

It is an arithmetic number, because the mean of its divisors is an integer number (2696400).

Almost surely, 2^20452303 is an apocalyptic number.

20452303 is a deficient number, since it is larger than the sum of its proper divisors (1118897).

20452303 is a wasteful number, since it uses less digits than its factorization.

20452303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 20452303 is about 4522.4222491935. The cubic root of 20452303 is about 273.4727593585.

Adding to 20452303 its reverse (30325402), we get a palindrome (50777705).

The spelling of 20452303 in words is "twenty million, four hundred fifty-two thousand, three hundred three".