21441214434 has 16 divisors (see below), whose sum is σ = 44041413888. Its totient is φ = 6953907312.

The previous prime is 21441214433. The next prime is 21441214439. The reversal of 21441214434 is 43441214412.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21441214433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48290802 + ... + 48291245.

It is an arithmetic number, because the mean of its divisors is an integer number (2752588368).

Almost surely, 2^21441214434 is an apocalyptic number.

21441214434 is an abundant number, since it is smaller than the sum of its proper divisors (22600199454).

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

21441214434 is a wasteful number, since it uses less digits than its factorization.

21441214434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96582089.

The product of its digits is 12288, while the sum is 30.

Adding to 21441214434 its reverse (43441214412), we get a palindrome (64882428846).

The spelling of 21441214434 in words is "twenty-one billion, four hundred forty-one million, two hundred fourteen thousand, four hundred thirty-four".