422251830 has 384 divisors, whose sum is σ = 1522160640. Its totient is φ = 78382080.

The previous prime is 422251813. The next prime is 422251883. The reversal of 422251830 is 38152224.

It is a junction number, because it is equal to n+sod(n) for n = 422251794 and 422251803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3873816 + ... + 3873924.

It is an arithmetic number, because the mean of its divisors is an integer number (3963960).

Almost surely, 2^422251830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422251830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (761080320).

422251830 is an abundant number, since it is smaller than the sum of its proper divisors (1099908810).

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

422251830 is a wasteful number, since it uses less digits than its factorization.

422251830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 422251830 is about 20548.7671163016. The cubic root of 422251830 is about 750.2232402118.

It can be divided in two parts, 422 and 251830, that added together give a palindrome (252252).

The spelling of 422251830 in words is "four hundred twenty-two million, two hundred fifty-one thousand, eight hundred thirty".