11401441440 has 48 divisors (see below), whose sum is σ = 35914542048. Its totient is φ = 3040384256.

The previous prime is 11401441439. The next prime is 11401441463. The reversal of 11401441440 is 4414410411.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 11401441440.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11876022 + ... + 11876981.

It is an arithmetic number, because the mean of its divisors is an integer number (748219626).

Almost surely, 2^11401441440 is an apocalyptic number.

11401441440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11401441440 is an abundant number, since it is smaller than the sum of its proper divisors (24513100608).

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

11401441440 is a wasteful number, since it uses less digits than its factorization.

11401441440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23753021 (or 23753013 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 11401441440 its reverse (4414410411), we get a palindrome (15815851851).

The spelling of 11401441440 in words is "eleven billion, four hundred one million, four hundred forty-one thousand, four hundred forty".