422340857 has 4 divisors (see below), whose sum is σ = 422387316. Its totient is φ = 422294400.

The previous prime is 422340827. The next prime is 422340871. The reversal of 422340857 is 758043224.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 266864896 + 155475961 = 16336^2 + 12469^2 .

It is a cyclic number.

It is not a de Polignac number, because 422340857 - 2²⁰ = 421292281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422340817) 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, 4628 + ... + 29429.

It is an arithmetic number, because the mean of its divisors is an integer number (105596829).

Almost surely, 2^422340857 is an apocalyptic number.

It is an amenable number.

422340857 is a deficient number, since it is larger than the sum of its proper divisors (46459).

422340857 is a wasteful number, since it uses less digits than its factorization.

422340857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46458.

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 422340857 is about 20550.9332391500. The cubic root of 422340857 is about 750.2759618550.

The spelling of 422340857 in words is "four hundred twenty-two million, three hundred forty thousand, eight hundred fifty-seven".