11400400404 has 36 divisors (see below), whose sum is σ = 29885002784. Its totient is φ = 3800133144.

The previous prime is 11400400339. The next prime is 11400400411. The reversal of 11400400404 is 40400400411.

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 (18).

It is a congruent number.

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, 5863432 + ... + 5865375.

Almost surely, 2^11400400404 is an apocalyptic number.

It is an amenable number.

11400400404 is an abundant number, since it is smaller than the sum of its proper divisors (18484602380).

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

11400400404 is a wasteful number, since it uses less digits than its factorization.

11400400404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11728826 (or 11728812 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 11400400404 its reverse (40400400411), we get a palindrome (51800800815).

The spelling of 11400400404 in words is "eleven billion, four hundred million, four hundred thousand, four hundred four".