21442302334 has 8 divisors (see below), whose sum is σ = 34055421408. Its totient is φ = 10090495200.

The previous prime is 21442302319. The next prime is 21442302341. The reversal of 21442302334 is 43320324412.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315327942 + ... + 315328009.

It is an arithmetic number, because the mean of its divisors is an integer number (4256927676).

Almost surely, 2^21442302334 is an apocalyptic number.

21442302334 is a deficient number, since it is larger than the sum of its proper divisors (12613119074).

21442302334 is a wasteful number, since it uses less digits than its factorization.

21442302334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630655970.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 21442302334 its reverse (43320324412), we get a palindrome (64762626746).

The spelling of 21442302334 in words is "twenty-one billion, four hundred forty-two million, three hundred two thousand, three hundred thirty-four".