143423228 has 48 divisors (see below), whose sum is σ = 276242400. Its totient is φ = 64760064.

The previous prime is 143423221. The next prime is 143423249. The reversal of 143423228 is 822324341.

It is a self number, because there is not a number n which added to its sum of digits gives 143423228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143423221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 828950 + ... + 829122.

It is an arithmetic number, because the mean of its divisors is an integer number (5755050).

Almost surely, 2^143423228 is an apocalyptic number.

It is an amenable number.

143423228 is a deficient number, since it is larger than the sum of its proper divisors (132819172).

143423228 is a wasteful number, since it uses less digits than its factorization.

143423228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446 (or 444 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

The square root of 143423228 is about 11975.9437206426. The cubic root of 143423228 is about 523.4475413944.

Adding to 143423228 its reverse (822324341), we get a palindrome (965747569).

The spelling of 143423228 in words is "one hundred forty-three million, four hundred twenty-three thousand, two hundred twenty-eight".