20323254 has 32 divisors (see below), whose sum is σ = 46586880. Its totient is φ = 5789952.

The previous prime is 20323201. The next prime is 20323267. The reversal of 20323254 is 45232302.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 20323254.

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, 27907 + ... + 28625.

It is an arithmetic number, because the mean of its divisors is an integer number (1455840).

Almost surely, 2^20323254 is an apocalyptic number.

20323254 is an abundant number, since it is smaller than the sum of its proper divisors (26263626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20323254 is a wasteful number, since it uses less digits than its factorization.

20323254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404.

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

The square root of 20323254 is about 4508.1319856455. The cubic root of 20323254 is about 272.8963634049.

Adding to 20323254 its reverse (45232302), we get a palindrome (65555556).

The spelling of 20323254 in words is "twenty million, three hundred twenty-three thousand, two hundred fifty-four".