20323230 has 16 divisors (see below), whose sum is σ = 48775824. Its totient is φ = 5419520.

The previous prime is 20323201. The next prime is 20323267. The reversal of 20323230 is 3232302.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338691 + ... + 338750.

It is an arithmetic number, because the mean of its divisors is an integer number (3048489).

Almost surely, 2^20323230 is an apocalyptic number.

20323230 is an abundant number, since it is smaller than the sum of its proper divisors (28452594).

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

20323230 is a wasteful number, since it uses less digits than its factorization.

20323230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677451.

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 20323230 is about 4508.1293237883. The cubic root of 20323230 is about 272.8962559825.

Adding to 20323230 its reverse (3232302), we get a palindrome (23555532).

The spelling of 20323230 in words is "twenty million, three hundred twenty-three thousand, two hundred thirty".