143040330 has 80 divisors (see below), whose sum is σ = 387727560. Its totient is φ = 37836288.

The previous prime is 143040311. The next prime is 143040353. The reversal of 143040330 is 33040341.

It can be written as a sum of positive squares in 4 ways, for example, as 134165889 + 8874441 = 11583^2 + 2979^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 110326 + ... + 111614.

Almost surely, 2^143040330 is an apocalyptic number.

143040330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 143040330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193863780).

143040330 is an abundant number, since it is smaller than the sum of its proper divisors (244687230).

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

143040330 is a wasteful number, since it uses less digits than its factorization.

143040330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445 (or 1436 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 143040330 is about 11959.9469062367. The cubic root of 143040330 is about 522.9813090530.

Adding to 143040330 its reverse (33040341), we get a palindrome (176080671).

The spelling of 143040330 in words is "one hundred forty-three million, forty thousand, three hundred thirty".