143240404 has 12 divisors (see below), whose sum is σ = 253691424. Its totient is φ = 70757144.

The previous prime is 143240401. The next prime is 143240413. The reversal of 143240404 is 404042341.

143240404 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143240401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215392 + ... + 216055.

It is an arithmetic number, because the mean of its divisors is an integer number (21140952).

Almost surely, 2^143240404 is an apocalyptic number.

It is an amenable number.

143240404 is a deficient number, since it is larger than the sum of its proper divisors (110451020).

143240404 is a wasteful number, since it uses less digits than its factorization.

143240404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431534 (or 431532 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 143240404 is about 11968.3083182211. The cubic root of 143240404 is about 523.2250310279.

Adding to 143240404 its reverse (404042341), we get a palindrome (547282745).

The spelling of 143240404 in words is "one hundred forty-three million, two hundred forty thousand, four hundred four".