12041449920 has 84 divisors (see below), whose sum is σ = 41417580360. Its totient is φ = 3211052544.

The previous prime is 12041449907. The next prime is 12041449949. The reversal of 12041449920 is 2994414021.

12041449920 is a `hidden beast` number, since 1 + 204 + 1 + 449 + 9 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2087650 + ... + 2093409.

Almost surely, 2^12041449920 is an apocalyptic number.

12041449920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12041449920 is an abundant number, since it is smaller than the sum of its proper divisors (29376130440).

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

12041449920 is a wasteful number, since it uses less digits than its factorization.

12041449920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4181082 (or 4181069 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 12041449920 in words is "twelve billion, forty-one million, four hundred forty-nine thousand, nine hundred twenty".