813340442 has 8 divisors (see below), whose sum is σ = 1248383136. Its totient is φ = 397212732.

The previous prime is 813340433. The next prime is 813340447. The reversal of 813340442 is 244043318.

813340442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (813340447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4728638 + ... + 4728809.

It is an arithmetic number, because the mean of its divisors is an integer number (156047892).

Almost surely, 2^813340442 is an apocalyptic number.

813340442 is a deficient number, since it is larger than the sum of its proper divisors (435042694).

813340442 is a wasteful number, since it uses less digits than its factorization.

813340442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9457492.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 813340442 is about 28519.1241450364. The cubic root of 813340442 is about 933.4494177325.

The spelling of 813340442 in words is "eight hundred thirteen million, three hundred forty thousand, four hundred forty-two".