143320422 has 16 divisors (see below), whose sum is σ = 327589632. Its totient is φ = 40948680.

The previous prime is 143320393. The next prime is 143320423. The reversal of 143320422 is 224023341.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143320423) 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 7 ways as a sum of consecutive naturals, for example, 1706154 + ... + 1706237.

It is an arithmetic number, because the mean of its divisors is an integer number (20474352).

Almost surely, 2^143320422 is an apocalyptic number.

143320422 is an abundant number, since it is smaller than the sum of its proper divisors (184269210).

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

143320422 is a wasteful number, since it uses less digits than its factorization.

143320422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3412403.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 143320422 is about 11971.6507633659. The cubic root of 143320422 is about 523.3224421532.

Adding to 143320422 its reverse (224023341), we get a palindrome (367343763).

The spelling of 143320422 in words is "one hundred forty-three million, three hundred twenty thousand, four hundred twenty-two".