21241314 has 12 divisors (see below), whose sum is σ = 46022886. Its totient is φ = 7080432.

The previous prime is 21241271. The next prime is 21241327. The reversal of 21241314 is 41314212.

It can be written as a sum of positive squares in only one way, i.e., 19210689 + 2030625 = 4383^2 + 1425^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1180073 = 21241314 / (2 + 1 + 2 + 4 + 1 + 3 + 1 + 4).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 590019 + ... + 590054.

Almost surely, 2^21241314 is an apocalyptic number.

21241314 is an abundant number, since it is smaller than the sum of its proper divisors (24781572).

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

21241314 is a wasteful number, since it uses less digits than its factorization.

21241314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180081 (or 1180078 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 21241314 is about 4608.8300033740. The cubic root of 21241314 is about 276.9451685011.

Adding to 21241314 its reverse (41314212), we get a palindrome (62555526).

The spelling of 21241314 in words is "twenty-one million, two hundred forty-one thousand, three hundred fourteen".