422863594 has 4 divisors (see below), whose sum is σ = 634295394. Its totient is φ = 211431796.

The previous prime is 422863583. The next prime is 422863607. The reversal of 422863594 is 495368224.

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

It can be written as a sum of positive squares in only one way, i.e., 234487969 + 188375625 = 15313^2 + 13725^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 422863594.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105715897 + ... + 105715900.

Almost surely, 2^422863594 is an apocalyptic number.

422863594 is a deficient number, since it is larger than the sum of its proper divisors (211431800).

422863594 is a wasteful number, since it uses less digits than its factorization.

422863594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211431799.

The product of its digits is 414720, while the sum is 43.

The square root of 422863594 is about 20563.6473904801. The cubic root of 422863594 is about 750.5853764751.

The spelling of 422863594 in words is "four hundred twenty-two million, eight hundred sixty-three thousand, five hundred ninety-four".