442231263 has 12 divisors (see below), whose sum is σ = 644432880. Its totient is φ = 292211136.

The previous prime is 442231261. The next prime is 442231271. The reversal of 442231263 is 362132244.

It is not a de Polignac number, because 442231263 - 2¹ = 442231261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442231261) 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, 216403 + ... + 218436.

It is an arithmetic number, because the mean of its divisors is an integer number (53702740).

Almost surely, 2^442231263 is an apocalyptic number.

442231263 is a deficient number, since it is larger than the sum of its proper divisors (202201617).

442231263 is a wasteful number, since it uses less digits than its factorization.

442231263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434958 (or 434955 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 442231263 is about 21029.2953519608. The cubic root of 442231263 is about 761.8739897445.

The spelling of 442231263 in words is "four hundred forty-two million, two hundred thirty-one thousand, two hundred sixty-three".