422385427 has 4 divisors (see below), whose sum is σ = 422705056. Its totient is φ = 422065800.

The previous prime is 422385413. The next prime is 422385437. The reversal of 422385427 is 724583224.

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-422385427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422385437) 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, 157824 + ... + 160477.

It is an arithmetic number, because the mean of its divisors is an integer number (105676264).

Almost surely, 2^422385427 is an apocalyptic number.

422385427 is a deficient number, since it is larger than the sum of its proper divisors (319629).

422385427 is a wasteful number, since it uses less digits than its factorization.

422385427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319628.

The product of its digits is 107520, while the sum is 37.

The square root of 422385427 is about 20552.0175895215. The cubic root of 422385427 is about 750.3023533528.

The spelling of 422385427 in words is "four hundred twenty-two million, three hundred eighty-five thousand, four hundred twenty-seven".