11436540 has 48 divisors (see below), whose sum is σ = 32810400. Its totient is φ = 2974720.

The previous prime is 11436539. The next prime is 11436541. The reversal of 11436540 is 4563411.

It is an interprime number because it is at equal distance from previous prime (11436539) and next prime (11436541).

It is a self number, because there is not a number n which added to its sum of digits gives 11436540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11436541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136 + ... + 4784.

It is an arithmetic number, because the mean of its divisors is an integer number (683550).

Almost surely, 2^11436540 is an apocalyptic number.

11436540 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 11436540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16405200).

11436540 is an abundant number, since it is smaller than the sum of its proper divisors (21373860).

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

11436540 is a wasteful number, since it uses less digits than its factorization.

11436540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4702 (or 4700 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 11436540 is about 3381.7953811548. The cubic root of 11436540 is about 225.3019156817.

Adding to 11436540 its reverse (4563411), we get a palindrome (15999951).

The spelling of 11436540 in words is "eleven million, four hundred thirty-six thousand, five hundred forty".