11404040412 has 24 divisors (see below), whose sum is σ = 27766359936. Its totient is φ = 3636070768.

The previous prime is 11404040393. The next prime is 11404040423. The reversal of 11404040412 is 21404040411.

It is a congruent number.

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, 20659218 + ... + 20659769.

It is an arithmetic number, because the mean of its divisors is an integer number (1156931664).

Almost surely, 2^11404040412 is an apocalyptic number.

11404040412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11404040412 is an abundant number, since it is smaller than the sum of its proper divisors (16362319524).

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

11404040412 is a wasteful number, since it uses less digits than its factorization.

11404040412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41319017 (or 41319015 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 11404040412 its reverse (21404040411), we get a palindrome (32808080823).

Subtracting 11404040412 from its reverse (21404040411), we obtain a palindrome (9999999999).

The spelling of 11404040412 in words is "eleven billion, four hundred four million, forty thousand, four hundred twelve".