143422220 has 12 divisors (see below), whose sum is σ = 301186704. Its totient is φ = 57368880.

The previous prime is 143422193. The next prime is 143422229. The reversal of 143422220 is 22224341.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 7171111 = 143422220 / (1 + 4 + 3 + 4 + 2 + 2 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 143422192 and 143422201.

It is not an unprimeable number, because it can be changed into a prime (143422229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3585536 + ... + 3585575.

It is an arithmetic number, because the mean of its divisors is an integer number (25098892).

Almost surely, 2^143422220 is an apocalyptic number.

143422220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143422220 is an abundant number, since it is smaller than the sum of its proper divisors (157764484).

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

143422220 is a wasteful number, since it uses less digits than its factorization.

143422220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7171120 (or 7171118 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 143422220 is about 11975.9016362026. The cubic root of 143422220 is about 523.4463151022.

Adding to 143422220 its reverse (22224341), we get a palindrome (165646561).

The spelling of 143422220 in words is "one hundred forty-three million, four hundred twenty-two thousand, two hundred twenty".