442403322 has 8 divisors (see below), whose sum is σ = 884806656. Its totient is φ = 147467772.

The previous prime is 442403303. The next prime is 442403327. The reversal of 442403322 is 223304244.

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

442403322 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 442403292 and 442403301.

It is not an unprimeable number, because it can be changed into a prime (442403327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36866938 + ... + 36866949.

It is an arithmetic number, because the mean of its divisors is an integer number (110600832).

Almost surely, 2^442403322 is an apocalyptic number.

442403322 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442403322 is a wasteful number, since it uses less digits than its factorization.

442403322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73733892.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 442403322 is about 21033.3858900558. The cubic root of 442403322 is about 761.9727844180.

Adding to 442403322 its reverse (223304244), we get a palindrome (665707566).

The spelling of 442403322 in words is "four hundred forty-two million, four hundred three thousand, three hundred twenty-two".