4188544244 has 6 divisors (see below), whose sum is σ = 7329952434. Its totient is φ = 2094272120.

The previous prime is 4188544231. The next prime is 4188544247. The reversal of 4188544244 is 4424458814.

It can be written as a sum of positive squares in only one way, i.e., 4180915600 + 7628644 = 64660^2 + 2762^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4188544195 and 4188544204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4188544247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 523568027 + ... + 523568034.

It is an arithmetic number, because the mean of its divisors is an integer number (1221658739).

Almost surely, 2^4188544244 is an apocalyptic number.

It is an amenable number.

4188544244 is a deficient number, since it is larger than the sum of its proper divisors (3141408190).

4188544244 is a wasteful number, since it uses less digits than its factorization.

4188544244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047136065 (or 1047136063 counting only the distinct ones).

The product of its digits is 655360, while the sum is 44.

The square root of 4188544244 is about 64718.9635578321. The cubic root of 4188544244 is about 1611.9604019812.

The spelling of 4188544244 in words is "four billion, one hundred eighty-eight million, five hundred forty-four thousand, two hundred forty-four".