11841890 has 16 divisors (see below), whose sum is σ = 21677760. Its totient is φ = 4656240.

The previous prime is 11841881. The next prime is 11841917. The reversal of 11841890 is 9814811.

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 7 ways as a sum of consecutive naturals, for example, 9446 + ... + 10625.

It is an arithmetic number, because the mean of its divisors is an integer number (1354860).

Almost surely, 2^11841890 is an apocalyptic number.

11841890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11841890 is a deficient number, since it is larger than the sum of its proper divisors (9835870).

11841890 is a wasteful number, since it uses less digits than its factorization.

11841890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20137.

The product of its (nonzero) digits is 2304, while the sum is 32.

The square root of 11841890 is about 3441.2047309046. The cubic root of 11841890 is about 227.9328955079.

The spelling of 11841890 in words is "eleven million, eight hundred forty-one thousand, eight hundred ninety".