422865366 has 64 divisors (see below), whose sum is σ = 1056706560. Its totient is φ = 109596960.

The previous prime is 422865353. The next prime is 422865371. The reversal of 422865366 is 663568224.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 335245 + ... + 336503.

It is an arithmetic number, because the mean of its divisors is an integer number (16511040).

Almost surely, 2^422865366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422865366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (528353280).

422865366 is an abundant number, since it is smaller than the sum of its proper divisors (633841194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422865366 is a wasteful number, since it uses less digits than its factorization.

422865366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009.

The product of its digits is 414720, while the sum is 42.

The square root of 422865366 is about 20563.6904761767. The cubic root of 422865366 is about 750.5864249105.

The spelling of 422865366 in words is "four hundred twenty-two million, eight hundred sixty-five thousand, three hundred sixty-six".