143240432 has 20 divisors (see below), whose sum is σ = 278174160. Its totient is φ = 71453568.

The previous prime is 143240417. The next prime is 143240477. The reversal of 143240432 is 234042341.

It is a junction number, because it is equal to n+sod(n) for n = 143240398 and 143240407.

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, 3173 + ... + 17220.

It is an arithmetic number, because the mean of its divisors is an integer number (13908708).

Almost surely, 2^143240432 is an apocalyptic number.

It is an amenable number.

143240432 is a deficient number, since it is larger than the sum of its proper divisors (134933728).

143240432 is a wasteful number, since it uses less digits than its factorization.

143240432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20840 (or 20834 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 143240432 is about 11968.3094879770. The cubic root of 143240432 is about 523.2250651204.

Adding to 143240432 its reverse (234042341), we get a palindrome (377282773).

The spelling of 143240432 in words is "one hundred forty-three million, two hundred forty thousand, four hundred thirty-two".