442345001 has 12 divisors (see below), whose sum is σ = 515032848. Its totient is φ = 378807912.

The previous prime is 442344997. The next prime is 442345019. The reversal of 442345001 is 100543244.

It is not a de Polignac number, because 442345001 - 2² = 442344997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442345021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60590 + ... + 67496.

It is an arithmetic number, because the mean of its divisors is an integer number (42919404).

Almost surely, 2^442345001 is an apocalyptic number.

It is an amenable number.

442345001 is a deficient number, since it is larger than the sum of its proper divisors (72687847).

442345001 is a wasteful number, since it uses less digits than its factorization.

442345001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8228 (or 8221 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 442345001 is about 21031.9994532141. Note that the first 3 decimals coincide. The cubic root of 442345001 is about 761.9392999138.

Adding to 442345001 its sum of digits (23), we get a square (442345024 = 21032²).

Adding to 442345001 its reverse (100543244), we get a palindrome (542888245).

The spelling of 442345001 in words is "four hundred forty-two million, three hundred forty-five thousand, one".