20344444 has 18 divisors (see below), whose sum is σ = 37822400. Its totient is φ = 9573312.

The previous prime is 20344433. The next prime is 20344447. The reversal of 20344444 is 44444302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7644 + ... + 9955.

Almost surely, 2^20344444 is an apocalyptic number.

It is an amenable number.

20344444 is a deficient number, since it is larger than the sum of its proper divisors (17477956).

20344444 is a wasteful number, since it uses less digits than its factorization.

20344444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17637 (or 17618 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 20344444 is about 4510.4815707416. The cubic root of 20344444 is about 272.9911754092.

Adding to 20344444 its reverse (44444302), we get a palindrome (64788746).

The spelling of 20344444 in words is "twenty million, three hundred forty-four thousand, four hundred forty-four".