11004040 has 32 divisors (see below), whose sum is σ = 26064000. Its totient is φ = 4169664.

The previous prime is 11004029. The next prime is 11004043. The reversal of 11004040 is 4040011.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (11004043) 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 7 ways as a sum of consecutive naturals, for example, 6480 + ... + 7999.

It is an arithmetic number, because the mean of its divisors is an integer number (814500).

Almost surely, 2^11004040 is an apocalyptic number.

11004040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11004040 is an abundant number, since it is smaller than the sum of its proper divisors (15059960).

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

11004040 is a wasteful number, since it uses less digits than its factorization.

11004040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14509 (or 14505 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 11004040 is about 3317.2337873596. The cubic root of 11004040 is about 222.4252326322.

Adding to 11004040 its reverse (4040011), we get a palindrome (15044051).

The spelling of 11004040 in words is "eleven million, four thousand, forty".