143680728 has 64 divisors (see below), whose sum is σ = 370782720. Its totient is φ = 46368000.

The previous prime is 143680727. The next prime is 143680741. The reversal of 143680728 is 827086341.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143680727) 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, 148101 + ... + 149067.

It is an arithmetic number, because the mean of its divisors is an integer number (5793480).

Almost surely, 2^143680728 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 143680728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185391360).

143680728 is an abundant number, since it is smaller than the sum of its proper divisors (227101992).

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

143680728 is a wasteful number, since it uses less digits than its factorization.

143680728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168 (or 1164 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 143680728 is about 11986.6896180722. The cubic root of 143680728 is about 523.7606174998.

The spelling of 143680728 in words is "one hundred forty-three million, six hundred eighty thousand, seven hundred twenty-eight".