904435842 has 16 divisors (see below), whose sum is σ = 1809753120. Its totient is φ = 301331712.

The previous prime is 904435783. The next prime is 904435849. The reversal of 904435842 is 248534409.

It is a self number, because there is not a number n which added to its sum of digits gives 904435842.

It is not an unprimeable number, because it can be changed into a prime (904435849) by changing a digit.

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, 22992 + ... + 48347.

It is an arithmetic number, because the mean of its divisors is an integer number (113109570).

Almost surely, 2^904435842 is an apocalyptic number.

904435842 is an abundant number, since it is smaller than the sum of its proper divisors (905317278).

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

904435842 is a wasteful number, since it uses less digits than its factorization.

904435842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73457.

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 904435842 is about 30073.8398279967. The cubic root of 904435842 is about 967.0729925327.

The spelling of 904435842 in words is "nine hundred four million, four hundred thirty-five thousand, eight hundred forty-two".