11040012 has 36 divisors (see below), whose sum is σ = 28009800. Its totient is φ = 3666432.

The previous prime is 11040011. The next prime is 11040017. The reversal of 11040012 is 21004011.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 11039976 and 11040003.

It is not an unprimeable number, because it can be changed into a prime (11040011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15823 + ... + 16505.

It is an arithmetic number, because the mean of its divisors is an integer number (778050).

Almost surely, 2^11040012 is an apocalyptic number.

11040012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11040012 is an abundant number, since it is smaller than the sum of its proper divisors (16969788).

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

11040012 is a wasteful number, since it uses less digits than its factorization.

11040012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142 (or 1137 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 11040012 is about 3322.6513509545. The cubic root of 11040012 is about 222.6673369807.

Adding to 11040012 its reverse (21004011), we get a palindrome (32044023).

The spelling of 11040012 in words is "eleven million, forty thousand, twelve".