442312343 has 8 divisors (see below), whose sum is σ = 507918720. Its totient is φ = 380938680.

The previous prime is 442312331. The next prime is 442312349. The reversal of 442312343 is 343213244.

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

It is a cyclic number.

It is not a de Polignac number, because 442312343 - 2⁴ = 442312327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442312349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1057955 + ... + 1058372.

It is an arithmetic number, because the mean of its divisors is an integer number (63489840).

Almost surely, 2^442312343 is an apocalyptic number.

442312343 is a deficient number, since it is larger than the sum of its proper divisors (65606377).

442312343 is a wasteful number, since it uses less digits than its factorization.

442312343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116357.

The product of its digits is 6912, while the sum is 26.

The square root of 442312343 is about 21031.2230505028. The cubic root of 442312343 is about 761.9205483164.

Adding to 442312343 its reverse (343213244), we get a palindrome (785525587).

Subtracting from 442312343 its reverse (343213244), we obtain a palindrome (99099099).

The spelling of 442312343 in words is "four hundred forty-two million, three hundred twelve thousand, three hundred forty-three".