21440333434414 has 16 divisors (see below), whose sum is σ = 33814884280320. Its totient is φ = 10180825371360.

The previous prime is 21440333434397. The next prime is 21440333434433. The reversal of 21440333434414 is 41443433304412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3030004014 + ... + 3030011089.

It is an arithmetic number, because the mean of its divisors is an integer number (2113430267520).

Almost surely, 2^{21440333434414} is an apocalyptic number.

21440333434414 is a deficient number, since it is larger than the sum of its proper divisors (12374550845906).

21440333434414 is a wasteful number, since it uses less digits than its factorization.

21440333434414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6060015195.

The product of its (nonzero) digits is 663552, while the sum is 40.

Adding to 21440333434414 its reverse (41443433304412), we get a palindrome (62883766738826).

The spelling of 21440333434414 in words is "twenty-one trillion, four hundred forty billion, three hundred thirty-three million, four hundred thirty-four thousand, four hundred fourteen".