422867251 has 4 divisors (see below), whose sum is σ = 422908672. Its totient is φ = 422825832.

The previous prime is 422867243. The next prime is 422867257. The reversal of 422867251 is 152768224.

It is a happy number.

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 is a cyclic number.

It is not a de Polignac number, because 422867251 - 2³ = 422867243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 422867251.

It is not an unprimeable number, because it can be changed into a prime (422867257) 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, 6670 + ... + 29836.

It is an arithmetic number, because the mean of its divisors is an integer number (105727168).

Almost surely, 2^422867251 is an apocalyptic number.

422867251 is a deficient number, since it is larger than the sum of its proper divisors (41421).

422867251 is a wasteful number, since it uses less digits than its factorization.

422867251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41420.

The product of its digits is 53760, while the sum is 37.

The square root of 422867251 is about 20563.7363093383. The cubic root of 422867251 is about 750.5875402011.

The spelling of 422867251 in words is "four hundred twenty-two million, eight hundred sixty-seven thousand, two hundred fifty-one".