442432313 has 4 divisors (see below), whose sum is σ = 445916160. Its totient is φ = 438948468.

The previous prime is 442432241. The next prime is 442432337. The reversal of 442432313 is 313234244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 442432313 - 2¹⁴ = 442415929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442431313) 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 3 ways as a sum of consecutive naturals, for example, 1741733 + ... + 1741986.

It is an arithmetic number, because the mean of its divisors is an integer number (111479040).

Almost surely, 2^442432313 is an apocalyptic number.

It is an amenable number.

442432313 is a deficient number, since it is larger than the sum of its proper divisors (3483847).

442432313 is a wasteful number, since it uses less digits than its factorization.

442432313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3483846.

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

The square root of 442432313 is about 21034.0750450311. The cubic root of 442432313 is about 761.9894282581.

Adding to 442432313 its reverse (313234244), we get a palindrome (755666557).

The spelling of 442432313 in words is "four hundred forty-two million, four hundred thirty-two thousand, three hundred thirteen".