11129808 has 20 divisors (see below), whose sum is σ = 28752128. Its totient is φ = 3709920.

The previous prime is 11129791. The next prime is 11129813. The reversal of 11129808 is 80892111.

11129808 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11129808² = 247745252233728, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115888 + ... + 115983.

Almost surely, 2^11129808 is an apocalyptic number.

It is an amenable number.

11129808 is an abundant number, since it is smaller than the sum of its proper divisors (17622320).

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

11129808 is a wasteful number, since it uses less digits than its factorization.

11129808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231882 (or 231876 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 30.

The square root of 11129808 is about 3336.1366878472. The cubic root of 11129808 is about 223.2694096896.

The spelling of 11129808 in words is "eleven million, one hundred twenty-nine thousand, eight hundred eight".