20358023 has 8 divisors (see below), whose sum is σ = 23307648. Its totient is φ = 17418744.

The previous prime is 20358011. The next prime is 20358031. The reversal of 20358023 is 32085302.

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

It is not a de Polignac number, because 20358023 - 2⁴ = 20358007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20358023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20358073) 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, 2240 + ... + 6762.

It is an arithmetic number, because the mean of its divisors is an integer number (2913456).

Almost surely, 2^20358023 is an apocalyptic number.

20358023 is a deficient number, since it is larger than the sum of its proper divisors (2949625).

20358023 is an equidigital number, since it uses as much as digits as its factorization.

20358023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5173.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 20358023 is about 4511.9865912921. The cubic root of 20358023 is about 273.0518983391.

The spelling of 20358023 in words is "twenty million, three hundred fifty-eight thousand, twenty-three".