4420131440 has 20 divisors (see below), whose sum is σ = 10276805784. Its totient is φ = 1768052544.

The previous prime is 4420131439. The next prime is 4420131487. The reversal of 4420131440 is 441310244.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 27625742 + ... + 27625901.

Almost surely, 2^4420131440 is an apocalyptic number.

4420131440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4420131440 is an abundant number, since it is smaller than the sum of its proper divisors (5856674344).

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

4420131440 is a wasteful number, since it uses less digits than its factorization.

4420131440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55251656 (or 55251650 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 4420131440 is about 66484.0690692139. The cubic root of 4420131440 is about 1641.1378480829.

Adding to 4420131440 its reverse (441310244), we get a palindrome (4861441684).

The spelling of 4420131440 in words is "four billion, four hundred twenty million, one hundred thirty-one thousand, four hundred forty".