4012544 has 40 divisors (see below), whose sum is σ = 8507268. Its totient is φ = 1884160.

The previous prime is 4012537. The next prime is 4012549. The reversal of 4012544 is 4452104.

It can be written as a sum of positive squares in 2 ways, for example, as 4000000 + 12544 = 2000^2 + 112^2 .

It is a super-2 number, since 2×4012544² = 32201018703872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4012549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8474 + ... + 8934.

Almost surely, 2^4012544 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 4012544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4253634).

4012544 is an abundant number, since it is smaller than the sum of its proper divisors (4494724).

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

4012544 is an equidigital number, since it uses as much as digits as its factorization.

4012544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 4012544 is about 2003.1335452236. The cubic root of 4012544 is about 158.9058683629.

Adding to 4012544 its reverse (4452104), we get a palindrome (8464648).

The spelling of 4012544 in words is "four million, twelve thousand, five hundred forty-four".