11213888 has 28 divisors (see below), whose sum is σ = 25432512. Its totient is φ = 4805760.

The previous prime is 11213843. The next prime is 11213957. The reversal of 11213888 is 88831211.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (28).

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 12068 + ... + 12963.

It is an arithmetic number, because the mean of its divisors is an integer number (908304).

Almost surely, 2^11213888 is an apocalyptic number.

It is an amenable number.

11213888 is an abundant number, since it is smaller than the sum of its proper divisors (14218624).

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

11213888 is an equidigital number, since it uses as much as digits as its factorization.

11213888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25050 (or 25040 counting only the distinct ones).

The product of its digits is 3072, while the sum is 32.

The square root of 11213888 is about 3348.7143801764. The cubic root of 11213888 is about 223.8302285041.

The spelling of 11213888 in words is "eleven million, two hundred thirteen thousand, eight hundred eighty-eight".