11401140 has 96 divisors (see below), whose sum is σ = 34312320. Its totient is φ = 2820096.

The previous prime is 11401139. The next prime is 11401141. The reversal of 11401140 is 4110411.

It is an interprime number because it is at equal distance from previous prime (11401139) and next prime (11401141).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11401141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83152 + ... + 83288.

It is an arithmetic number, because the mean of its divisors is an integer number (357420).

Almost surely, 2^11401140 is an apocalyptic number.

11401140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11401140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17156160).

11401140 is an abundant number, since it is smaller than the sum of its proper divisors (22911180).

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

11401140 is a wasteful number, since it uses less digits than its factorization.

11401140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 11401140 is about 3376.5574184367. The cubic root of 11401140 is about 225.0692132747.

Adding to 11401140 its reverse (4110411), we get a palindrome (15511551).

The spelling of 11401140 in words is "eleven million, four hundred one thousand, one hundred forty".