1042904 has 8 divisors (see below), whose sum is σ = 1955460. Its totient is φ = 521448.

The previous prime is 1042903. The next prime is 1042931. The reversal of 1042904 is 4092401.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042901) 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 as a sum of consecutive naturals, namely, 65174 + ... + 65189.

2^1042904 is an apocalyptic number.

It is an amenable number.

1042904 is a deficient number, since it is larger than the sum of its proper divisors (912556).

1042904 is a wasteful number, since it uses less digits than its factorization.

1042904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130369 (or 130365 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1042904 is about 1021.2267133208. The cubic root of 1042904 is about 101.4101545046.

The spelling of 1042904 in words is "one million, forty-two thousand, nine hundred four".