904685438 has 8 divisors (see below), whose sum is σ = 1371018432. Its totient is φ = 447679296.

The previous prime is 904685429. The next prime is 904685501. The reversal of 904685438 is 834586409.

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 = 904685392 and 904685401.

It is a congruent number.

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, 2331470 + ... + 2331857.

It is an arithmetic number, because the mean of its divisors is an integer number (171377304).

Almost surely, 2^904685438 is an apocalyptic number.

904685438 is a deficient number, since it is larger than the sum of its proper divisors (466332994).

904685438 is a wasteful number, since it uses less digits than its factorization.

904685438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4663426.

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 904685438 is about 30077.9892612522. The cubic root of 904685438 is about 967.1619449819.

The spelling of 904685438 in words is "nine hundred four million, six hundred eighty-five thousand, four hundred thirty-eight".