143424440 has 16 divisors (see below), whose sum is σ = 322705080. Its totient is φ = 57369760.

The previous prime is 143424419. The next prime is 143424497. The reversal of 143424440 is 44424341.

It is a happy number.

143424440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1792766 + ... + 1792845.

Almost surely, 2^143424440 is an apocalyptic number.

143424440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143424440 is an abundant number, since it is smaller than the sum of its proper divisors (179280640).

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

143424440 is a wasteful number, since it uses less digits than its factorization.

143424440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3585622 (or 3585618 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 143424440 is about 11975.9943219759. The cubic root of 143424440 is about 523.4490158571.

Adding to 143424440 its reverse (44424341), we get a palindrome (187848781).

Subtracting from 143424440 its reverse (44424341), we obtain a palindrome (99000099).

The spelling of 143424440 in words is "one hundred forty-three million, four hundred twenty-four thousand, four hundred forty".