1203904 has 28 divisors (see below), whose sum is σ = 2574544. Its totient is φ = 555264.

The previous prime is 1203901. The next prime is 1203913. The reversal of 1203904 is 4093021.

It is not an unprimeable number, because it can be changed into a prime (1203901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109 + ... + 1555.

It is an arithmetic number, because the mean of its divisors is an integer number (91948).

2^1203904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1203904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1287272).

1203904 is an abundant number, since it is smaller than the sum of its proper divisors (1370640).

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

1203904 is a wasteful number, since it uses less digits than its factorization.

1203904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472 (or 1462 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1203904 is about 1097.2255921186. The cubic root of 1203904 is about 106.3809715911.

Adding to 1203904 its reverse (4093021), we get a palindrome (5296925).

The spelling of 1203904 in words is "one million, two hundred three thousand, nine hundred four".