9189012 has 48 divisors (see below), whose sum is σ = 24711680. Its totient is φ = 2603232.

The previous prime is 9189007. The next prime is 9189023. The reversal of 9189012 is 2109819.

It is a super-2 number, since 2×9189012² = 168875883072288, 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 15 ways as a sum of consecutive naturals, for example, 11283 + ... + 12069.

Almost surely, 2^9189012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9189012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12355840).

9189012 is an abundant number, since it is smaller than the sum of its proper divisors (15522668).

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

9189012 is a wasteful number, since it uses less digits than its factorization.

9189012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940 (or 938 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 9189012 is about 3031.3383183010. The cubic root of 9189012 is about 209.4544570186.

The spelling of 9189012 in words is "nine million, one hundred eighty-nine thousand, twelve".