11236540 has 48 divisors (see below), whose sum is σ = 27320832. Its totient is φ = 3802176.

The previous prime is 11236499. The next prime is 11236549. The reversal of 11236540 is 4563211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11236549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11137 + ... + 12103.

It is an arithmetic number, because the mean of its divisors is an integer number (569184).

Almost surely, 2^11236540 is an apocalyptic number.

11236540 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 11236540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13660416).

11236540 is an abundant number, since it is smaller than the sum of its proper divisors (16084292).

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

11236540 is a wasteful number, since it uses less digits than its factorization.

11236540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066 (or 1064 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 11236540 is about 3352.0948673926. The cubic root of 11236540 is about 223.9808391348.

Adding to 11236540 its reverse (4563211), we get a palindrome (15799751).

The spelling of 11236540 in words is "eleven million, two hundred thirty-six thousand, five hundred forty".