11284890 has 32 divisors (see below), whose sum is σ = 27181440. Its totient is φ = 2998464.

The previous prime is 11284829. The next prime is 11284907. The reversal of 11284890 is 9848211.

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 15 ways as a sum of consecutive naturals, for example, 11187 + ... + 12153.

It is an arithmetic number, because the mean of its divisors is an integer number (849420).

Almost surely, 2^11284890 is an apocalyptic number.

11284890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11284890 is an abundant number, since it is smaller than the sum of its proper divisors (15896550).

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

11284890 is a wasteful number, since it uses less digits than its factorization.

11284890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366.

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 11284890 is about 3359.2990340248. The cubic root of 11284890 is about 224.3016371085.

The spelling of 11284890 in words is "eleven million, two hundred eighty-four thousand, eight hundred ninety".