442298879 has 4 divisors (see below), whose sum is σ = 482507880. Its totient is φ = 402089880.

The previous prime is 442298873. The next prime is 442298881. The reversal of 442298879 is 978892244.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 442298879 - 2⁴ = 442298863 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 442298879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442298873) 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, 20104484 + ... + 20104505.

It is an arithmetic number, because the mean of its divisors is an integer number (120626970).

Almost surely, 2^442298879 is an apocalyptic number.

442298879 is a deficient number, since it is larger than the sum of its proper divisors (40209001).

442298879 is a wasteful number, since it uses less digits than its factorization.

442298879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40209000.

The product of its digits is 2322432, while the sum is 53.

The square root of 442298879 is about 21030.9029525601. The cubic root of 442298879 is about 761.9128172771.

It can be divided in two parts, 4422 and 98879, that added together give a palindrome (103301).

The spelling of 442298879 in words is "four hundred forty-two million, two hundred ninety-eight thousand, eight hundred seventy-nine".