11810140 has 24 divisors (see below), whose sum is σ = 25153632. Its totient is φ = 4656960.

The previous prime is 11810137. The next prime is 11810143. The reversal of 11810140 is 4101811.

11810140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11810137) and next prime (11810143).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11810143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2739 + ... + 5578.

It is an arithmetic number, because the mean of its divisors is an integer number (1048068).

Almost surely, 2^11810140 is an apocalyptic number.

11810140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11810140 is an abundant number, since it is smaller than the sum of its proper divisors (13343492).

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

11810140 is a wasteful number, since it uses less digits than its factorization.

11810140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8397 (or 8395 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 11810140 is about 3436.5884245862. The cubic root of 11810140 is about 227.7290050023.

Adding to 11810140 its reverse (4101811), we get a palindrome (15911951).

The spelling of 11810140 in words is "eleven million, eight hundred ten thousand, one hundred forty".