442422440213 has 16 divisors (see below), whose sum is σ = 491526529536. Its totient is φ = 395570433600.

The previous prime is 442422440197. The next prime is 442422440221. The reversal of 442422440213 is 312044224244.

It is not a de Polignac number, because 442422440213 - 2⁴ = 442422440197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 442422440213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442422440113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1955063 + ... + 2169588.

It is an arithmetic number, because the mean of its divisors is an integer number (30720408096).

Almost surely, 2^442422440213 is an apocalyptic number.

It is an amenable number.

442422440213 is a deficient number, since it is larger than the sum of its proper divisors (49104089323).

442422440213 is a wasteful number, since it uses less digits than its factorization.

442422440213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4124924.

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 442422440213 its reverse (312044224244), we get a palindrome (754466664457).

The spelling of 442422440213 in words is "four hundred forty-two billion, four hundred twenty-two million, four hundred forty thousand, two hundred thirteen".