11434011440 has 40 divisors (see below), whose sum is σ = 26832546000. Its totient is φ = 4530857216.

The previous prime is 11434011439. The next prime is 11434011451. The reversal of 11434011440 is 4411043411.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×11434011440² (a number of 21 digits) contains 22 as substring.

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, 659315 + ... + 676434.

It is an arithmetic number, because the mean of its divisors is an integer number (670813650).

Almost surely, 2^11434011440 is an apocalyptic number.

11434011440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11434011440 is an abundant number, since it is smaller than the sum of its proper divisors (15398534560).

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

11434011440 is a wasteful number, since it uses less digits than its factorization.

11434011440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335869 (or 1335863 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 11434011440 its reverse (4411043411), we get a palindrome (15845054851).

The spelling of 11434011440 in words is "eleven billion, four hundred thirty-four million, eleven thousand, four hundred forty".