4181144 has 16 divisors (see below), whose sum is σ = 8552520. Its totient is φ = 1900480.

The previous prime is 4181141. The next prime is 4181171. The reversal of 4181144 is 4411814.

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4181141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23669 + ... + 23844.

Almost surely, 2^4181144 is an apocalyptic number.

4181144 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4181144 is an abundant number, since it is smaller than the sum of its proper divisors (4371376).

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

4181144 is a wasteful number, since it uses less digits than its factorization.

4181144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47530 (or 47526 counting only the distinct ones).

The product of its digits is 512, while the sum is 23.

The square root of 4181144 is about 2044.7845852314. The cubic root of 4181144 is about 161.1010514880.

Adding to 4181144 its reverse (4411814), we get a palindrome (8592958).

The spelling of 4181144 in words is "four million, one hundred eighty-one thousand, one hundred forty-four".