11945912 has 64 divisors (see below), whose sum is σ = 26265600. Its totient is φ = 5040000.

The previous prime is 11945909. The next prime is 11945929. The reversal of 11945912 is 21954911.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79037 + ... + 79187.

It is an arithmetic number, because the mean of its divisors is an integer number (410400).

Almost surely, 2^11945912 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 11945912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13132800).

11945912 is an abundant number, since it is smaller than the sum of its proper divisors (14319688).

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

11945912 is a wasteful number, since it uses less digits than its factorization.

11945912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 224 counting only the distinct ones).

The product of its digits is 3240, while the sum is 32.

The square root of 11945912 is about 3456.2858678067. The cubic root of 11945912 is about 228.5983565001.

The spelling of 11945912 in words is "eleven million, nine hundred forty-five thousand, nine hundred twelve".