11211828 has 12 divisors (see below), whose sum is σ = 26160960. Its totient is φ = 3737272.

The previous prime is 11211821. The next prime is 11211839. The reversal of 11211828 is 82811211.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 11211798 and 11211807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211821) 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, 467148 + ... + 467171.

It is an arithmetic number, because the mean of its divisors is an integer number (2180080).

Almost surely, 2^11211828 is an apocalyptic number.

It is an amenable number.

11211828 is an abundant number, since it is smaller than the sum of its proper divisors (14949132).

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

11211828 is a wasteful number, since it uses less digits than its factorization.

11211828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934326 (or 934324 counting only the distinct ones).

The product of its digits is 256, while the sum is 24.

The square root of 11211828 is about 3348.4067853234. The cubic root of 11211828 is about 223.8165217354.

The spelling of 11211828 in words is "eleven million, two hundred eleven thousand, eight hundred twenty-eight".