11400440919 has 16 divisors (see below), whose sum is σ = 17776104192. Its totient is φ = 6363036288.

The previous prime is 11400440903. The next prime is 11400440963. The reversal of 11400440919 is 91904400411.

It is not a de Polignac number, because 11400440919 - 2⁴ = 11400440903 is a prime.

It is a super-2 number, since 2×11400440919² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11400440919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11400440969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6311634 + ... + 6313439.

It is an arithmetic number, because the mean of its divisors is an integer number (1111006512).

Almost surely, 2^11400440919 is an apocalyptic number.

11400440919 is a deficient number, since it is larger than the sum of its proper divisors (6375663273).

11400440919 is a wasteful number, since it uses less digits than its factorization.

11400440919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12625126.

The product of its (nonzero) digits is 5184, while the sum is 33.

The spelling of 11400440919 in words is "eleven billion, four hundred million, four hundred forty thousand, nine hundred nineteen".