442275427 has 4 divisors (see below), whose sum is σ = 482482296. Its totient is φ = 402068560.

The previous prime is 442275413. The next prime is 442275439. The reversal of 442275427 is 724572244.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442275427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442275227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20103418 + ... + 20103439.

It is an arithmetic number, because the mean of its divisors is an integer number (120620574).

Almost surely, 2^442275427 is an apocalyptic number.

442275427 is a deficient number, since it is larger than the sum of its proper divisors (40206869).

442275427 is a wasteful number, since it uses less digits than its factorization.

442275427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40206868.

The product of its digits is 125440, while the sum is 37.

The square root of 442275427 is about 21030.3453847054. The cubic root of 442275427 is about 761.8993507457.

The spelling of 442275427 in words is "four hundred forty-two million, two hundred seventy-five thousand, four hundred twenty-seven".