11639228 has 12 divisors (see below), whose sum is σ = 20627040. Its totient is φ = 5745792.

The previous prime is 11639213. The next prime is 11639249. The reversal of 11639228 is 82293611.

It is a junction number, because it is equal to n+sod(n) for n = 11639194 and 11639203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18101 + ... + 18732.

It is an arithmetic number, because the mean of its divisors is an integer number (1718920).

Almost surely, 2^11639228 is an apocalyptic number.

It is an amenable number.

11639228 is a deficient number, since it is larger than the sum of its proper divisors (8987812).

11639228 is a wasteful number, since it uses less digits than its factorization.

11639228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36916 (or 36914 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The square root of 11639228 is about 3411.6312813667. The cubic root of 11639228 is about 226.6251259899.

The spelling of 11639228 in words is "eleven million, six hundred thirty-nine thousand, two hundred twenty-eight".