404143432 has 32 divisors (see below), whose sum is σ = 944752320. Its totient is φ = 157458240.

The previous prime is 404143427. The next prime is 404143457. The reversal of 404143432 is 234341404.

It is a junction number, because it is equal to n+sod(n) for n = 404143397 and 404143406.

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 7 ways as a sum of consecutive naturals, for example, 327423 + ... + 328654.

It is an arithmetic number, because the mean of its divisors is an integer number (29523510).

Almost surely, 2^404143432 is an apocalyptic number.

It is an amenable number.

404143432 is an abundant number, since it is smaller than the sum of its proper divisors (540608888).

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

404143432 is a wasteful number, since it uses less digits than its factorization.

404143432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656101 (or 656097 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 404143432 is about 20103.3189299678. The cubic root of 404143432 is about 739.3416545506.

Adding to 404143432 its reverse (234341404), we get a palindrome (638484836).

The spelling of 404143432 in words is "four hundred four million, one hundred forty-three thousand, four hundred thirty-two".