11555842 has 8 divisors (see below), whose sum is σ = 17370000. Its totient is φ = 5765844.

The previous prime is 11555783. The next prime is 11555909. The reversal of 11555842 is 24855511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4792 + ... + 6787.

It is an arithmetic number, because the mean of its divisors is an integer number (2171250).

Almost surely, 2^11555842 is an apocalyptic number.

11555842 is a deficient number, since it is larger than the sum of its proper divisors (5814158).

11555842 is a wasteful number, since it uses less digits than its factorization.

11555842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12080.

The product of its digits is 8000, while the sum is 31.

The square root of 11555842 is about 3399.3884744171. The cubic root of 11555842 is about 226.0826309169.

It can be divided in two parts, 115558 and 42, that added together give a square (115600 = 340²).

The spelling of 11555842 in words is "eleven million, five hundred fifty-five thousand, eight hundred forty-two".