11289612 has 12 divisors (see below), whose sum is σ = 26342456. Its totient is φ = 3763200.

The previous prime is 11289601. The next prime is 11289617. The reversal of 11289612 is 21698211.

It is a happy number.

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

It is a super-2 number, since 2×11289612² = 254910678221088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11289612.

It is not an unprimeable number, because it can be changed into a prime (11289617) 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, 470389 + ... + 470412.

Almost surely, 2^11289612 is an apocalyptic number.

11289612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11289612 is an abundant number, since it is smaller than the sum of its proper divisors (15052844).

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

11289612 is a wasteful number, since it uses less digits than its factorization.

11289612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940808 (or 940806 counting only the distinct ones).

The product of its digits is 1728, while the sum is 30.

The square root of 11289612 is about 3360.0017857138. The cubic root of 11289612 is about 224.3329180112.

The spelling of 11289612 in words is "eleven million, two hundred eighty-nine thousand, six hundred twelve".