11286540 has 60 divisors (see below), whose sum is σ = 35411376. Its totient is φ = 3009312.

The previous prime is 11286503. The next prime is 11286547. The reversal of 11286540 is 4568211.

11286540 is a `hidden beast` number, since 1 + 1 + 2 + 8 + 654 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (11286547) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1864 + ... + 5103.

Almost surely, 2^11286540 is an apocalyptic number.

11286540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11286540 is an abundant number, since it is smaller than the sum of its proper divisors (24124836).

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

11286540 is a wasteful number, since it uses less digits than its factorization.

11286540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6988 (or 6977 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 11286540 is about 3359.5446119973. The cubic root of 11286540 is about 224.3125685300.

The spelling of 11286540 in words is "eleven million, two hundred eighty-six thousand, five hundred forty".