422568251 has 8 divisors (see below), whose sum is σ = 499588320. Its totient is φ = 349711488.

The previous prime is 422568241. The next prime is 422568253. The reversal of 422568251 is 152865224.

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

It is not a de Polignac number, because 422568251 - 2⁶ = 422568187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (422568253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1040606 + ... + 1041011.

It is an arithmetic number, because the mean of its divisors is an integer number (62448540).

Almost surely, 2^422568251 is an apocalyptic number.

422568251 is a deficient number, since it is larger than the sum of its proper divisors (77020069).

422568251 is a wasteful number, since it uses less digits than its factorization.

422568251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081653.

The product of its digits is 38400, while the sum is 35.

The square root of 422568251 is about 20556.4649441483. The cubic root of 422568251 is about 750.4105905869.

The spelling of 422568251 in words is "four hundred twenty-two million, five hundred sixty-eight thousand, two hundred fifty-one".