143387328 has 84 divisors (see below), whose sum is σ = 441347352. Its totient is φ = 40965120.

The previous prime is 143387323. The next prime is 143387341. The reversal of 143387328 is 823783341.

It is a tau number, because it is divible by the number of its divisors (84).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (143387323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1788 + ... + 17028.

Almost surely, 2^143387328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143387328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220673676).

143387328 is an abundant number, since it is smaller than the sum of its proper divisors (297960024).

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

143387328 is a wasteful number, since it uses less digits than its factorization.

143387328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15270 (or 15253 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 143387328 is about 11974.4447887992. Note that the first 3 decimals coincide. The cubic root of 143387328 is about 523.4038633581.

The spelling of 143387328 in words is "one hundred forty-three million, three hundred eighty-seven thousand, three hundred twenty-eight".