21342000044 has 24 divisors (see below), whose sum is σ = 39680613840. Its totient is φ = 10024572096.

The previous prime is 21341999981. The next prime is 21342000077. The reversal of 21342000044 is 44000024312.

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, 2481962 + ... + 2490545.

It is an arithmetic number, because the mean of its divisors is an integer number (1653358910).

Almost surely, 2^21342000044 is an apocalyptic number.

It is an amenable number.

21342000044 is a deficient number, since it is larger than the sum of its proper divisors (18338613796).

21342000044 is a wasteful number, since it uses less digits than its factorization.

21342000044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4972577 (or 4972575 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 21342000044 its reverse (44000024312), we get a palindrome (65342024356).

The spelling of 21342000044 in words is "twenty-one billion, three hundred forty-two million, forty-four", and thus it is an aban number.