143472728 has 32 divisors (see below), whose sum is σ = 312038400. Its totient is φ = 60568992.

The previous prime is 143472713. The next prime is 143472733. The reversal of 143472728 is 827274341.

It is a junction number, because it is equal to n+sod(n) for n = 143472691 and 143472700.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15368 + ... + 22871.

It is an arithmetic number, because the mean of its divisors is an integer number (9751200).

Almost surely, 2^143472728 is an apocalyptic number.

It is an amenable number.

143472728 is an abundant number, since it is smaller than the sum of its proper divisors (168565672).

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

143472728 is a wasteful number, since it uses less digits than its factorization.

143472728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38319 (or 38315 counting only the distinct ones).

The product of its digits is 75264, while the sum is 38.

The square root of 143472728 is about 11978.0101853355. The cubic root of 143472728 is about 523.5077540330.

The spelling of 143472728 in words is "one hundred forty-three million, four hundred seventy-two thousand, seven hundred twenty-eight".