20452323 has 8 divisors (see below), whose sum is σ = 27433728. Its totient is φ = 13552904.

The previous prime is 20452307. The next prime is 20452357. The reversal of 20452323 is 32325402.

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 20452323 - 2⁴ = 20452307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20452323.

It is not an unprimeable number, because it can be changed into a prime (20452363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19911 + ... + 20912.

It is an arithmetic number, because the mean of its divisors is an integer number (3429216).

Almost surely, 2^20452323 is an apocalyptic number.

20452323 is a deficient number, since it is larger than the sum of its proper divisors (6981405).

20452323 is a wasteful number, since it uses less digits than its factorization.

20452323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40993.

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

The square root of 20452323 is about 4522.4244603973. The cubic root of 20452323 is about 273.4728485001.

Adding to 20452323 its reverse (32325402), we get a palindrome (52777725).

The spelling of 20452323 in words is "twenty million, four hundred fifty-two thousand, three hundred twenty-three".