442722427 has 8 divisors (see below), whose sum is σ = 519643616. Its totient is φ = 369220032.

The previous prime is 442722421. The next prime is 442722461. The reversal of 442722427 is 724227244.

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 442722427 - 2³ = 442722419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442722392 and 442722401.

It is not an unprimeable number, because it can be changed into a prime (442722421) 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, 854418 + ... + 854935.

It is an arithmetic number, because the mean of its divisors is an integer number (64955452).

Almost surely, 2^442722427 is an apocalyptic number.

442722427 is a deficient number, since it is larger than the sum of its proper divisors (76921189).

442722427 is a wasteful number, since it uses less digits than its factorization.

442722427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709397.

The product of its digits is 50176, while the sum is 34.

The square root of 442722427 is about 21040.9702010150. The cubic root of 442722427 is about 762.1559437476.

The spelling of 442722427 in words is "four hundred forty-two million, seven hundred twenty-two thousand, four hundred twenty-seven".