11289644 has 6 divisors (see below), whose sum is σ = 19756884. Its totient is φ = 5644820.

The previous prime is 11289631. The next prime is 11289647. The reversal of 11289644 is 44698211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11289647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1411202 + ... + 1411209.

It is an arithmetic number, because the mean of its divisors is an integer number (3292814).

Almost surely, 2^11289644 is an apocalyptic number.

It is an amenable number.

11289644 is a deficient number, since it is larger than the sum of its proper divisors (8467240).

11289644 is a wasteful number, since it uses less digits than its factorization.

11289644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2822415 (or 2822413 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 11289644 is about 3360.0065476127. The cubic root of 11289644 is about 224.3331299655. Note that the first 3 decimals are identical.

The spelling of 11289644 in words is "eleven million, two hundred eighty-nine thousand, six hundred forty-four".