20140223 has 8 divisors (see below), whose sum is σ = 21364560. Its totient is φ = 18920320.

The previous prime is 20140213. The next prime is 20140243. The reversal of 20140223 is 32204102.

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

It is not a de Polignac number, because 20140223 - 2²⁰ = 19091647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20140198 and 20140207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20140213) 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, 15368 + ... + 16626.

It is an arithmetic number, because the mean of its divisors is an integer number (2670570).

Almost surely, 2^20140223 is an apocalyptic number.

20140223 is a deficient number, since it is larger than the sum of its proper divisors (1224337).

20140223 is a wasteful number, since it uses less digits than its factorization.

20140223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2217.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 20140223 is about 4487.7859797455. The cubic root of 20140223 is about 272.0746578151.

Adding to 20140223 its reverse (32204102), we get a palindrome (52344325).

The spelling of 20140223 in words is "twenty million, one hundred forty thousand, two hundred twenty-three".