904138 has 8 divisors (see below), whose sum is σ = 1364832. Its totient is φ = 449196.

The previous prime is 904121. The next prime is 904147. The reversal of 904138 is 831409.

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

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, 1020 + ... + 1687.

It is an arithmetic number, because the mean of its divisors is an integer number (170604).

2⁹⁰⁴¹³⁸ is an apocalyptic number.

904138 is a deficient number, since it is larger than the sum of its proper divisors (460694).

904138 is a wasteful number, since it uses less digits than its factorization.

904138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2876.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 904138 is about 950.8617144464. The cubic root of 904138 is about 96.6966824480.

The spelling of 904138 in words is "nine hundred four thousand, one hundred thirty-eight".