442022313 has 8 divisors (see below), whose sum is σ = 605291968. Its totient is φ = 286717104.

The previous prime is 442022311. The next prime is 442022333. The reversal of 442022313 is 313220244.

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

It is not a de Polignac number, because 442022313 - 2¹ = 442022311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442022313.

It is not an unprimeable number, because it can be changed into a prime (442022311) 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, 1990981 + ... + 1991202.

It is an arithmetic number, because the mean of its divisors is an integer number (75661496).

Almost surely, 2^442022313 is an apocalyptic number.

It is an amenable number.

442022313 is a deficient number, since it is larger than the sum of its proper divisors (163269655).

442022313 is a wasteful number, since it uses less digits than its factorization.

442022313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3982223.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 442022313 is about 21024.3266955211. The cubic root of 442022313 is about 761.7539781408.

Adding to 442022313 its reverse (313220244), we get a palindrome (755242557).

The spelling of 442022313 in words is "four hundred forty-two million, twenty-two thousand, three hundred thirteen".