143840016 has 80 divisors (see below), whose sum is σ = 424080000. Its totient is φ = 46645632.

The previous prime is 143839991. The next prime is 143840017. The reversal of 143840016 is 610048341.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (143840017) 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, 11485 + ... + 20483.

It is an arithmetic number, because the mean of its divisors is an integer number (5301000).

Almost surely, 2^143840016 is an apocalyptic number.

143840016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143840016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212040000).

143840016 is an abundant number, since it is smaller than the sum of its proper divisors (280239984).

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

143840016 is a wasteful number, since it uses less digits than its factorization.

143840016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9053 (or 9041 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 143840016 is about 11993.3321474893. The cubic root of 143840016 is about 523.9540973329.

Adding to 143840016 its reverse (610048341), we get a palindrome (753888357).

The spelling of 143840016 in words is "one hundred forty-three million, eight hundred forty thousand, sixteen".