11904012 has 72 divisors (see below), whose sum is σ = 32550336. Its totient is φ = 3654144.

The previous prime is 11903993. The next prime is 11904043. The reversal of 11904012 is 21040911.

It is a super-2 number, since 2×11904012² = 283411003392288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32253 + ... + 32619.

It is an arithmetic number, because the mean of its divisors is an integer number (452088).

Almost surely, 2^11904012 is an apocalyptic number.

11904012 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 11904012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16275168).

11904012 is an abundant number, since it is smaller than the sum of its proper divisors (20646324).

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

11904012 is a wasteful number, since it uses less digits than its factorization.

11904012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 11904012 is about 3450.2191234761. The cubic root of 11904012 is about 228.3307756594.

Adding to 11904012 its reverse (21040911), we get a palindrome (32944923).

The spelling of 11904012 in words is "eleven million, nine hundred four thousand, twelve".