442247235 has 16 divisors (see below), whose sum is σ = 718158336. Its totient is φ = 232344288.

The previous prime is 442247207. The next prime is 442247237. The reversal of 442247235 is 532742244.

It is not a de Polignac number, because 442247235 - 2⁷ = 442247107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 442247196 and 442247205.

It is not an unprimeable number, because it can be changed into a prime (442247237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219019 + ... + 221028.

It is an arithmetic number, because the mean of its divisors is an integer number (44884896).

Almost surely, 2^442247235 is an apocalyptic number.

442247235 is a deficient number, since it is larger than the sum of its proper divisors (275911101).

442247235 is a wasteful number, since it uses less digits than its factorization.

442247235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440122.

The product of its digits is 53760, while the sum is 33.

The square root of 442247235 is about 21029.6751044803. The cubic root of 442247235 is about 761.8831617968.

Adding to 442247235 its reverse (532742244), we get a palindrome (974989479).

The spelling of 442247235 in words is "four hundred forty-two million, two hundred forty-seven thousand, two hundred thirty-five".