12115444 has 24 divisors (see below), whose sum is σ = 23250528. Its totient is φ = 5478240.

The previous prime is 12115421. The next prime is 12115463. The reversal of 12115444 is 44451121.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9382 + ... + 10594.

It is an arithmetic number, because the mean of its divisors is an integer number (968772).

Almost surely, 2^12115444 is an apocalyptic number.

It is an amenable number.

12115444 is a deficient number, since it is larger than the sum of its proper divisors (11135084).

12115444 is a wasteful number, since it uses less digits than its factorization.

12115444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455 (or 1453 counting only the distinct ones).

The product of its digits is 640, while the sum is 22.

The square root of 12115444 is about 3480.7246371984. The cubic root of 12115444 is about 229.6746755361.

Adding to 12115444 its reverse (44451121), we get a palindrome (56566565).

The spelling of 12115444 in words is "twelve million, one hundred fifteen thousand, four hundred forty-four".