21442592944 has 10 divisors (see below), whose sum is σ = 41545023860. Its totient is φ = 10721296464.

The previous prime is 21442592917. The next prime is 21442592981. The reversal of 21442592944 is 44929524412.

It is a junction number, because it is equal to n+sod(n) for n = 21442592894 and 21442592903.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670081014 + ... + 670081045.

It is an arithmetic number, because the mean of its divisors is an integer number (4154502386).

Almost surely, 2^21442592944 is an apocalyptic number.

It is an amenable number.

21442592944 is a deficient number, since it is larger than the sum of its proper divisors (20102430916).

21442592944 is a wasteful number, since it uses less digits than its factorization.

21442592944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340162067 (or 1340162061 counting only the distinct ones).

The product of its digits is 829440, while the sum is 46.

It can be divided in two parts, 21442 and 592944, that added together give a triangular number (614386 = T₁₁₀₈).

The spelling of 21442592944 in words is "twenty-one billion, four hundred forty-two million, five hundred ninety-two thousand, nine hundred forty-four".