404432042 has 8 divisors (see below), whose sum is σ = 693312096. Its totient is φ = 173328012.

The previous prime is 404432027. The next prime is 404432051. The reversal of 404432042 is 240234404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 404431999 and 404432017.

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, 14443988 + ... + 14444015.

It is an arithmetic number, because the mean of its divisors is an integer number (86664012).

Almost surely, 2^404432042 is an apocalyptic number.

404432042 is a deficient number, since it is larger than the sum of its proper divisors (288880054).

404432042 is a wasteful number, since it uses less digits than its factorization.

404432042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28888012.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 404432042 is about 20110.4958168614. The cubic root of 404432042 is about 739.5176074462.

Adding to 404432042 its reverse (240234404), we get a palindrome (644666446).

The spelling of 404432042 in words is "four hundred four million, four hundred thirty-two thousand, forty-two".