11545240 has 32 divisors (see below), whose sum is σ = 29688480. Its totient is φ = 3958272.

The previous prime is 11545229. The next prime is 11545249. The reversal of 11545240 is 4254511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11545249) 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, 20337 + ... + 20896.

It is an arithmetic number, because the mean of its divisors is an integer number (927765).

Almost surely, 2^11545240 is an apocalyptic number.

11545240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11545240 is an abundant number, since it is smaller than the sum of its proper divisors (18143240).

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

11545240 is a wasteful number, since it uses less digits than its factorization.

11545240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41251 (or 41247 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 11545240 is about 3397.8287184612. The cubic root of 11545240 is about 226.0134693202.

Adding to 11545240 its reverse (4254511), we get a palindrome (15799751).

The spelling of 11545240 in words is "eleven million, five hundred forty-five thousand, two hundred forty".