21444020314 has 8 divisors (see below), whose sum is σ = 32169274848. Its totient is φ = 10720928700.

The previous prime is 21444020309. The next prime is 21444020327. The reversal of 21444020314 is 41302044412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515712 + ... + 555739.

It is an arithmetic number, because the mean of its divisors is an integer number (4021159356).

Almost surely, 2^21444020314 is an apocalyptic number.

21444020314 is a deficient number, since it is larger than the sum of its proper divisors (10725254534).

21444020314 is a wasteful number, since it uses less digits than its factorization.

21444020314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081460.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 21444020314 its reverse (41302044412), we get a palindrome (62746064726).

The spelling of 21444020314 in words is "twenty-one billion, four hundred forty-four million, twenty thousand, three hundred fourteen".