11804840 has 32 divisors (see below), whose sum is σ = 26661960. Its totient is φ = 4704000.

The previous prime is 11804839. The next prime is 11804857. The reversal of 11804840 is 4840811.

It can be written as a sum of positive squares in 4 ways, for example, as 7828804 + 3976036 = 2798^2 + 1994^2 .

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16490 + ... + 17190.

Almost surely, 2^11804840 is an apocalyptic number.

11804840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11804840 is an abundant number, since it is smaller than the sum of its proper divisors (14857120).

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

11804840 is a wasteful number, since it uses less digits than its factorization.

11804840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133 (or 1129 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 11804840 is about 3435.8172244751. The cubic root of 11804840 is about 227.6949341580.

The spelling of 11804840 in words is "eleven million, eight hundred four thousand, eight hundred forty".