11780228 has 12 divisors (see below), whose sum is σ = 21700560. Its totient is φ = 5580072.

The previous prime is 11780227. The next prime is 11780231. The reversal of 11780228 is 82208711.

It is a self number, because there is not a number n which added to its sum of digits gives 11780228.

It is not an unprimeable number, because it can be changed into a prime (11780227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77426 + ... + 77577.

It is an arithmetic number, because the mean of its divisors is an integer number (1808380).

Almost surely, 2^11780228 is an apocalyptic number.

It is an amenable number.

11780228 is a deficient number, since it is larger than the sum of its proper divisors (9920332).

11780228 is a wasteful number, since it uses less digits than its factorization.

11780228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155026 (or 155024 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 11780228 is about 3432.2336750286. The cubic root of 11780228 is about 227.5365830957.

Adding to 11780228 its reverse (82208711), we get a palindrome (93988939).

The spelling of 11780228 in words is "eleven million, seven hundred eighty thousand, two hundred twenty-eight".