143030040 has 128 divisors (see below), whose sum is σ = 448208640. Its totient is φ = 36481536.

The previous prime is 143030033. The next prime is 143030057. The reversal of 143030040 is 40030341.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 273219 + ... + 273741.

It is an arithmetic number, because the mean of its divisors is an integer number (3501630).

Almost surely, 2^143030040 is an apocalyptic number.

143030040 is a gapful number since it is divisible by the number (10) 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 143030040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224104320).

143030040 is an abundant number, since it is smaller than the sum of its proper divisors (305178600).

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

143030040 is a wasteful number, since it uses less digits than its factorization.

143030040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 143030040 is about 11959.5167126435. The cubic root of 143030040 is about 522.9687680521.

Adding to 143030040 its reverse (40030341), we get a palindrome (183060381).

The spelling of 143030040 in words is "one hundred forty-three million, thirty thousand, forty".