442428907519 has 4 divisors (see below), whose sum is σ = 442434494344. Its totient is φ = 442423320696.

The previous prime is 442428907513. The next prime is 442428907589. The reversal of 442428907519 is 915709824244.

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 442428907519 - 2¹⁵ = 442428874751 is a prime.

It is a super-2 number, since 2×442428907519² (a number of 24 digits) contains 22 as substring.

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 442428907519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442428907513) 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, 2672892 + ... + 2833585.

It is an arithmetic number, because the mean of its divisors is an integer number (110608623586).

Almost surely, 2^442428907519 is an apocalyptic number.

442428907519 is a deficient number, since it is larger than the sum of its proper divisors (5586825).

442428907519 is an equidigital number, since it uses as much as digits as its factorization.

442428907519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5586824.

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 442428907519 in words is "four hundred forty-two billion, four hundred twenty-eight million, nine hundred seven thousand, five hundred nineteen".