11412540 has 144 divisors (see below), whose sum is σ = 37739520. Its totient is φ = 2782080.

The previous prime is 11412523. The next prime is 11412571. The reversal of 11412540 is 4521411.

11412540 is a `hidden beast` number, since 114 + 12 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 160705 + ... + 160775.

It is an arithmetic number, because the mean of its divisors is an integer number (262080).

Almost surely, 2^11412540 is an apocalyptic number.

11412540 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 11412540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18869760).

11412540 is an abundant number, since it is smaller than the sum of its proper divisors (26326980).

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

11412540 is a wasteful number, since it uses less digits than its factorization.

11412540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 11412540 is about 3378.2451065605. The cubic root of 11412540 is about 225.1442038554.

Adding to 11412540 its reverse (4521411), we get a palindrome (15933951).

The spelling of 11412540 in words is "eleven million, four hundred twelve thousand, five hundred forty".