4140120444 has 24 divisors (see below), whose sum is σ = 10168717440. Its totient is φ = 1307406384.

The previous prime is 4140120437. The next prime is 4140120461. The reversal of 4140120444 is 4440210414.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9078984 + ... + 9079439.

It is an arithmetic number, because the mean of its divisors is an integer number (423696560).

Almost surely, 2^4140120444 is an apocalyptic number.

It is an amenable number.

4140120444 is an abundant number, since it is smaller than the sum of its proper divisors (6028596996).

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

4140120444 is a wasteful number, since it uses less digits than its factorization.

4140120444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18158449 (or 18158447 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 4140120444 is about 64343.7677168504. The cubic root of 4140120444 is about 1605.7243449768.

Adding to 4140120444 its reverse (4440210414), we get a palindrome (8580330858).

The spelling of 4140120444 in words is "four billion, one hundred forty million, one hundred twenty thousand, four hundred forty-four".