11401340240 has 40 divisors (see below), whose sum is σ = 26515921920. Its totient is φ = 4559193216.

The previous prime is 11401340213. The next prime is 11401340261. The reversal of 11401340240 is 4204310411.

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

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 279041 + ... + 317279.

It is an arithmetic number, because the mean of its divisors is an integer number (662898048).

Almost surely, 2^11401340240 is an apocalyptic number.

11401340240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11401340240 is an abundant number, since it is smaller than the sum of its proper divisors (15114581680).

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

11401340240 is a wasteful number, since it uses less digits than its factorization.

11401340240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41979 (or 41973 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11401340240 its reverse (4204310411), we get a palindrome (15605650651).

The spelling of 11401340240 in words is "eleven billion, four hundred one million, three hundred forty thousand, two hundred forty".