11265840 has 60 divisors (see below), whose sum is σ = 37836864. Its totient is φ = 3004032.

The previous prime is 11265827. The next prime is 11265851. The reversal of 11265840 is 4856211.

11265840 is a `hidden beast` number, since 1 + 1 + 2 + 658 + 4 + 0 = 666.

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

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 7104 + ... + 8543.

Almost surely, 2^11265840 is an apocalyptic number.

11265840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11265840 is an abundant number, since it is smaller than the sum of its proper divisors (26571024).

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

11265840 is a wasteful number, since it uses less digits than its factorization.

11265840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15666 (or 15657 counting only the distinct ones).

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

The square root of 11265840 is about 3356.4624234453. The cubic root of 11265840 is about 224.1753516410.

The spelling of 11265840 in words is "eleven million, two hundred sixty-five thousand, eight hundred forty".