11381284 has 12 divisors (see below), whose sum is σ = 20190604. Its totient is φ = 5612544.

The previous prime is 11381261. The next prime is 11381299. The reversal of 11381284 is 48218311.

It can be written as a sum of positive squares in 2 ways, for example, as 3132900 + 8248384 = 1770^2 + 2872^2 .

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 3 ways as a sum of consecutive naturals, for example, 19197 + ... + 19780.

Almost surely, 2^11381284 is an apocalyptic number.

It is an amenable number.

11381284 is a deficient number, since it is larger than the sum of its proper divisors (8809320).

11381284 is a wasteful number, since it uses less digits than its factorization.

11381284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39054 (or 39052 counting only the distinct ones).

The product of its digits is 1536, while the sum is 28.

The square root of 11381284 is about 3373.6158643212. The cubic root of 11381284 is about 224.9384786531.

Adding to 11381284 its reverse (48218311), we get a palindrome (59599595).

The spelling of 11381284 in words is "eleven million, three hundred eighty-one thousand, two hundred eighty-four".