11129238 has 20 divisors (see below), whose sum is σ = 24938100. Its totient is φ = 3709692.

The previous prime is 11129233. The next prime is 11129249. The reversal of 11129238 is 83292111.

11129238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11129233) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 34188 + ... + 34511.

It is an arithmetic number, because the mean of its divisors is an integer number (1246905).

Almost surely, 2^11129238 is an apocalyptic number.

11129238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11129238 is an abundant number, since it is smaller than the sum of its proper divisors (13808862).

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

11129238 is an equidigital number, since it uses as much as digits as its factorization.

11129238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68713 (or 68704 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 11129238 is about 3336.0512585990. The cubic root of 11129238 is about 223.2655981313.

The spelling of 11129238 in words is "eleven million, one hundred twenty-nine thousand, two hundred thirty-eight".