21434014441 has 8 divisors (see below), whose sum is σ = 24506046720. Its totient is φ = 18364489728.

The previous prime is 21434014439. The next prime is 21434014471. The reversal of 21434014441 is 14441043412.

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

It is a cyclic number.

It is not a de Polignac number, because 21434014441 - 2¹ = 21434014439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21434014471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 608536 + ... + 642793.

It is an arithmetic number, because the mean of its divisors is an integer number (3063255840).

Almost surely, 2^21434014441 is an apocalyptic number.

It is an amenable number.

21434014441 is a deficient number, since it is larger than the sum of its proper divisors (3072032279).

21434014441 is a wasteful number, since it uses less digits than its factorization.

21434014441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253783.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 21434014441 its reverse (14441043412), we get a palindrome (35875057853).

The spelling of 21434014441 in words is "twenty-one billion, four hundred thirty-four million, fourteen thousand, four hundred forty-one".