404125042 has 16 divisors (see below), whose sum is σ = 641457792. Its totient is φ = 190553440.

The previous prime is 404125031. The next prime is 404125067. The reversal of 404125042 is 240521404.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58603 + ... + 65134.

It is an arithmetic number, because the mean of its divisors is an integer number (40091112).

Almost surely, 2^404125042 is an apocalyptic number.

404125042 is a deficient number, since it is larger than the sum of its proper divisors (237332750).

404125042 is a wasteful number, since it uses less digits than its factorization.

404125042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123833.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 404125042 is about 20102.8615376021. The cubic root of 404125042 is about 739.3304401333.

Adding to 404125042 its reverse (240521404), we get a palindrome (644646446).

It can be divided in two parts, 40412 and 5042, that added together give a palindrome (45454).

The spelling of 404125042 in words is "four hundred four million, one hundred twenty-five thousand, forty-two".