12047544 has 48 divisors (see below), whose sum is σ = 32877000. Its totient is φ = 3985344.

The previous prime is 12047531. The next prime is 12047549. The reversal of 12047544 is 44574021.

It is a super-4 number, since 4×12047544⁴ (a number of 29 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12047549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10167 + ... + 11289.

Almost surely, 2^12047544 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 12047544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16438500).

12047544 is an abundant number, since it is smaller than the sum of its proper divisors (20829456).

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

12047544 is a wasteful number, since it uses less digits than its factorization.

12047544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284 (or 1277 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 12047544 is about 3470.9572166767. The cubic root of 12047544 is about 229.2448072628.

The spelling of 12047544 in words is "twelve million, forty-seven thousand, five hundred forty-four".