11881828 has 12 divisors (see below), whose sum is σ = 23763712. Its totient is φ = 5092200.

The previous prime is 11881811. The next prime is 11881829. The reversal of 11881828 is 82818811.

It is a happy number.

11881828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

11881828 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (11881829) 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, 212148 + ... + 212203.

Almost surely, 2^11881828 is an apocalyptic number.

It is an amenable number.

11881828 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11881828 is a wasteful number, since it uses less digits than its factorization.

11881828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424362 (or 424360 counting only the distinct ones).

The product of its digits is 8192, while the sum is 37.

The square root of 11881828 is about 3447.0027560186. The cubic root of 11881828 is about 228.1888504076.

The spelling of 11881828 in words is "eleven million, eight hundred eighty-one thousand, eight hundred twenty-eight".