20023230 has 16 divisors (see below), whose sum is σ = 48055824. Its totient is φ = 5339520.

The previous prime is 20023187. The next prime is 20023259. The reversal of 20023230 is 3232002.

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, 333691 + ... + 333750.

It is an arithmetic number, because the mean of its divisors is an integer number (3003489).

Almost surely, 2^20023230 is an apocalyptic number.

20023230 is an abundant number, since it is smaller than the sum of its proper divisors (28032594).

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

20023230 is a wasteful number, since it uses less digits than its factorization.

20023230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667451.

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 20023230 is about 4474.7323942332. The cubic root of 20023230 is about 271.5468141992.

Adding to 20023230 its reverse (3232002), we get a palindrome (23255232).

The spelling of 20023230 in words is "twenty million, twenty-three thousand, two hundred thirty".