442122222433 has 4 divisors (see below), whose sum is σ = 457367816340. Its totient is φ = 426876628528.

The previous prime is 442122222419. The next prime is 442122222533. The reversal of 442122222433 is 334222221244.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 236412805729 + 205709416704 = 486223^2 + 453552^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442122222433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442122222395 and 442122222404.

It is not an unprimeable number, because it can be changed into a prime (442122222133) 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, 7622796910 + ... + 7622796967.

It is an arithmetic number, because the mean of its divisors is an integer number (114341954085).

Almost surely, 2^442122222433 is an apocalyptic number.

It is an amenable number.

442122222433 is a deficient number, since it is larger than the sum of its proper divisors (15245593907).

442122222433 is a wasteful number, since it uses less digits than its factorization.

442122222433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15245593906.

The product of its digits is 36864, while the sum is 31.

Adding to 442122222433 its reverse (334222221244), we get a palindrome (776344443677).

The spelling of 442122222433 in words is "four hundred forty-two billion, one hundred twenty-two million, two hundred twenty-two thousand, four hundred thirty-three".