442632345 has 8 divisors (see below), whose sum is σ = 708211776. Its totient is φ = 236070576.

The previous prime is 442632343. The next prime is 442632367. The reversal of 442632345 is 543236244.

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

It is not a de Polignac number, because 442632345 - 2¹ = 442632343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442632343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14754397 + ... + 14754426.

It is an arithmetic number, because the mean of its divisors is an integer number (88526472).

Almost surely, 2^442632345 is an apocalyptic number.

It is an amenable number.

442632345 is a deficient number, since it is larger than the sum of its proper divisors (265579431).

442632345 is a wasteful number, since it uses less digits than its factorization.

442632345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29508831.

The product of its digits is 69120, while the sum is 33.

The square root of 442632345 is about 21038.8294588839. The cubic root of 442632345 is about 762.1042475571.

Adding to 442632345 its reverse (543236244), we get a palindrome (985868589).

The spelling of 442632345 in words is "four hundred forty-two million, six hundred thirty-two thousand, three hundred forty-five".