21114344 has 16 divisors (see below), whose sum is σ = 40555620. Its totient is φ = 10299520.

The previous prime is 21114341. The next prime is 21114361. The reversal of 21114344 is 44341112.

It can be written as a sum of positive squares in 2 ways, for example, as 20811844 + 302500 = 4562^2 + 550^2 .

It is not an unprimeable number, because it can be changed into a prime (21114341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31859 + ... + 32514.

Almost surely, 2^21114344 is an apocalyptic number.

It is an amenable number.

21114344 is a deficient number, since it is larger than the sum of its proper divisors (19441276).

21114344 is a wasteful number, since it uses less digits than its factorization.

21114344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64420 (or 64416 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 21114344 is about 4595.0347115120. The cubic root of 21114344 is about 276.3922519003.

Adding to 21114344 its reverse (44341112), we get a palindrome (65455456).

The spelling of 21114344 in words is "twenty-one million, one hundred fourteen thousand, three hundred forty-four".