442427 has 4 divisors (see below), whose sum is σ = 452760. Its totient is φ = 432096.

The previous prime is 442399. The next prime is 442439. The reversal of 442427 is 724244.

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

It is a cyclic number.

It is not a de Polignac number, because 442427 - 2⁶ = 442363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442447) 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, 5102 + ... + 5187.

It is an arithmetic number, because the mean of its divisors is an integer number (113190).

2⁴⁴²⁴²⁷ is an apocalyptic number.

442427 is a deficient number, since it is larger than the sum of its proper divisors (10333).

442427 is a wasteful number, since it uses less digits than its factorization.

442427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10332.

The product of its digits is 1792, while the sum is 23.

The square root of 442427 is about 665.1518623593. The cubic root of 442427 is about 76.1986378100.

The spelling of 442427 in words is "four hundred forty-two thousand, four hundred twenty-seven", and thus it is an iban number.