299642440446 has 48 divisors (see below), whose sum is σ = 665284012848. Its totient is φ = 97411881600.

The previous prime is 299642440441. The next prime is 299642440457. The reversal of 299642440446 is 644044246992.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 299642440392 and 299642440401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (299642440441) 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 23 ways as a sum of consecutive naturals, for example, 2174461 + ... + 2308151.

It is an arithmetic number, because the mean of its divisors is an integer number (13860083601).

Almost surely, 2^299642440446 is an apocalyptic number.

299642440446 is an abundant number, since it is smaller than the sum of its proper divisors (365641572402).

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

299642440446 is a wasteful number, since it uses less digits than its factorization.

299642440446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136777 (or 136774 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 54.

The spelling of 299642440446 in words is "two hundred ninety-nine billion, six hundred forty-two million, four hundred forty thousand, four hundred forty-six".