422042850 has 144 divisors (see below), whose sum is σ = 1229465952. Its totient is φ = 103380480.

The previous prime is 422042813. The next prime is 422042899. The reversal of 422042850 is 58240224.

It is a happy number.

It is a super-2 number, since 2×422042850² = 356240334472245000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 328309 + ... + 329591.

It is an arithmetic number, because the mean of its divisors is an integer number (8537958).

Almost surely, 2^422042850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422042850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (614732976).

422042850 is an abundant number, since it is smaller than the sum of its proper divisors (807423102).

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

422042850 is a wasteful number, since it uses less digits than its factorization.

422042850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361 (or 1353 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 422042850 is about 20543.6815103817. The cubic root of 422042850 is about 750.0994534781.

It can be divided in two parts, 42204 and 2850, that added together give a palindrome (45054).

The spelling of 422042850 in words is "four hundred twenty-two million, forty-two thousand, eight hundred fifty".