422865490 has 8 divisors (see below), whose sum is σ = 761157900. Its totient is φ = 169146192.

The previous prime is 422865467. The next prime is 422865491. The reversal of 422865490 is 94568224.

It can be written as a sum of positive squares in 2 ways, for example, as 414896161 + 7969329 = 20369^2 + 2823^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (422865491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21143265 + ... + 21143284.

Almost surely, 2^422865490 is an apocalyptic number.

422865490 is a deficient number, since it is larger than the sum of its proper divisors (338292410).

422865490 is a wasteful number, since it uses less digits than its factorization.

422865490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42286556.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 422865490 is about 20563.6934911995. The cubic root of 422865490 is about 750.5864982772.

The spelling of 422865490 in words is "four hundred twenty-two million, eight hundred sixty-five thousand, four hundred ninety".