442442330 has 16 divisors (see below), whose sum is σ = 868796064. Its totient is φ = 160888080.

The previous prime is 442442293. The next prime is 442442359. The reversal of 442442330 is 33244244.

It is a self number, because there is not a number n which added to its sum of digits gives 442442330.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2010992 + ... + 2011211.

It is an arithmetic number, because the mean of its divisors is an integer number (54299754).

Almost surely, 2^442442330 is an apocalyptic number.

442442330 is a deficient number, since it is larger than the sum of its proper divisors (426353734).

442442330 is a wasteful number, since it uses less digits than its factorization.

442442330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4022221.

The product of its (nonzero) digits is 9216, while the sum is 26.

The square root of 442442330 is about 21034.3131573151. The cubic root of 442442330 is about 761.9951788858.

Adding to 442442330 its reverse (33244244), we get a palindrome (475686574).

The spelling of 442442330 in words is "four hundred forty-two million, four hundred forty-two thousand, three hundred thirty".