1504904 has 16 divisors (see below), whose sum is σ = 2835420. Its totient is φ = 748800.

The previous prime is 1504903. The next prime is 1504907. The reversal of 1504904 is 4094051.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1464100 + 40804 = 1210^2 + 202^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1504904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1504903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2204 + ... + 2804.

2^1504904 is an apocalyptic number.

It is an amenable number.

1504904 is a deficient number, since it is larger than the sum of its proper divisors (1330516).

1504904 is a wasteful number, since it uses less digits than its factorization.

1504904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920 (or 916 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1504904 is about 1226.7452873356. The cubic root of 1504904 is about 114.5960369680.

Adding to 1504904 its reverse (4094051), we get a palindrome (5598955).

The spelling of 1504904 in words is "one million, five hundred four thousand, nine hundred four".