20053344 has 24 divisors (see below), whose sum is σ = 52640280. Its totient is φ = 6684416.

The previous prime is 20053343. The next prime is 20053357. The reversal of 20053344 is 44335002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 20053344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20053343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104349 + ... + 104540.

It is an arithmetic number, because the mean of its divisors is an integer number (2193345).

Almost surely, 2^20053344 is an apocalyptic number.

20053344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20053344 is an abundant number, since it is smaller than the sum of its proper divisors (32586936).

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

20053344 is a wasteful number, since it uses less digits than its factorization.

20053344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208902 (or 208894 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 20053344 is about 4478.0960239816. The cubic root of 20053344 is about 271.6828772408.

Adding to 20053344 its reverse (44335002), we get a palindrome (64388346).

The spelling of 20053344 in words is "twenty million, fifty-three thousand, three hundred forty-four".