11919012 has 48 divisors (see below), whose sum is σ = 32471040. Its totient is φ = 3331872.

The previous prime is 11919007. The next prime is 11919043. The reversal of 11919012 is 21091911.

It is a super-2 number, since 2×11919012² = 284125694112288, which contains 22 as substring.

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, 2439 + ... + 5457.

It is an arithmetic number, because the mean of its divisors is an integer number (676480).

Almost surely, 2^11919012 is an apocalyptic number.

11919012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11919012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16235520).

11919012 is an abundant number, since it is smaller than the sum of its proper divisors (20552028).

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

11919012 is a wasteful number, since it uses less digits than its factorization.

11919012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3080 (or 3078 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 24.

The square root of 11919012 is about 3452.3922141031. The cubic root of 11919012 is about 228.4266403720.

The spelling of 11919012 in words is "eleven million, nine hundred nineteen thousand, twelve".