1422443220 has 96 divisors (see below), whose sum is σ = 4358140416. Its totient is φ = 343785600.

The previous prime is 1422443219. The next prime is 1422443221. The reversal of 1422443220 is 223442241.

It is an interprime number because it is at equal distance from previous prime (1422443219) and next prime (1422443221).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422443221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 225915 + ... + 232125.

It is an arithmetic number, because the mean of its divisors is an integer number (45397296).

Almost surely, 2^1422443220 is an apocalyptic number.

1422443220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1422443220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2179070208).

1422443220 is an abundant number, since it is smaller than the sum of its proper divisors (2935697196).

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

1422443220 is a wasteful number, since it uses less digits than its factorization.

1422443220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6581 (or 6579 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 1422443220 is about 37715.2915937289. The cubic root of 1422443220 is about 1124.6351330349.

Adding to 1422443220 its reverse (223442241), we get a palindrome (1645885461).

The spelling of 1422443220 in words is "one billion, four hundred twenty-two million, four hundred forty-three thousand, two hundred twenty".