11821304 has 16 divisors (see below), whose sum is σ = 24180120. Its totient is φ = 5373280.

The previous prime is 11821301. The next prime is 11821331. The reversal of 11821304 is 40312811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11821301) 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, 67079 + ... + 67254.

Almost surely, 2^11821304 is an apocalyptic number.

It is an amenable number.

11821304 is an abundant number, since it is smaller than the sum of its proper divisors (12358816).

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

11821304 is a wasteful number, since it uses less digits than its factorization.

11821304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134350 (or 134346 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 11821304 is about 3438.2123261951. The cubic root of 11821304 is about 227.8007390077.

The spelling of 11821304 in words is "eleven million, eight hundred twenty-one thousand, three hundred four".