20344304 has 20 divisors (see below), whose sum is σ = 39565176. Its totient is φ = 10133952.

The previous prime is 20344273. The next prime is 20344309. The reversal of 20344304 is 40344302.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2282 + ... + 6774.

Almost surely, 2^20344304 is an apocalyptic number.

It is an amenable number.

20344304 is a deficient number, since it is larger than the sum of its proper divisors (19220872).

20344304 is a wasteful number, since it uses less digits than its factorization.

20344304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4784 (or 4778 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 20344304 is about 4510.4660513078. The cubic root of 20344304 is about 272.9905492128.

Adding to 20344304 its reverse (40344302), we get a palindrome (60688606).

The spelling of 20344304 in words is "twenty million, three hundred forty-four thousand, three hundred four".