11800642 has 16 divisors (see below), whose sum is σ = 20301120. Its totient is φ = 5039568.

The previous prime is 11800639. The next prime is 11800673. The reversal of 11800642 is 24600811.

It is a super-2 number, since 2×11800642² = 278510303224328, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 3109 + ... + 5767.

It is an arithmetic number, because the mean of its divisors is an integer number (1268820).

Almost surely, 2^11800642 is an apocalyptic number.

11800642 is a deficient number, since it is larger than the sum of its proper divisors (8500478).

11800642 is a wasteful number, since it uses less digits than its factorization.

11800642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2985.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 11800642 is about 3435.2062529053. The cubic root of 11800642 is about 227.6679402397.

The spelling of 11800642 in words is "eleven million, eight hundred thousand, six hundred forty-two".