442637427 has 8 divisors (see below), whose sum is σ = 590456016. Its totient is φ = 294955232.

The previous prime is 442637417. The next prime is 442637467. The reversal of 442637427 is 724736244.

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

It is a cyclic number.

It is not a de Polignac number, because 442637427 - 2²² = 438443123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442637417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26268 + ... + 39689.

It is an arithmetic number, because the mean of its divisors is an integer number (73807002).

Almost surely, 2^442637427 is an apocalyptic number.

442637427 is a deficient number, since it is larger than the sum of its proper divisors (147818589).

442637427 is a wasteful number, since it uses less digits than its factorization.

442637427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68197.

The product of its digits is 225792, while the sum is 39.

The square root of 442637427 is about 21038.9502352185. The cubic root of 442637427 is about 762.1071641981.

The spelling of 442637427 in words is "four hundred forty-two million, six hundred thirty-seven thousand, four hundred twenty-seven".