11804040 has 48 divisors (see below), whose sum is σ = 38364300. Its totient is φ = 3147648.

The previous prime is 11804033. The next prime is 11804053. The reversal of 11804040 is 4040811.

It can be written as a sum of positive squares in 2 ways, for example, as 11737476 + 66564 = 3426^2 + 258^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16035 + ... + 16754.

Almost surely, 2^11804040 is an apocalyptic number.

11804040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11804040 is an abundant number, since it is smaller than the sum of its proper divisors (26560260).

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

11804040 is a wasteful number, since it uses less digits than its factorization.

11804040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32806 (or 32799 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 11804040 is about 3435.7008018743. The cubic root of 11804040 is about 227.6897905033.

Adding to 11804040 its reverse (4040811), we get a palindrome (15844851).

The spelling of 11804040 in words is "eleven million, eight hundred four thousand, forty".