4544140240 has 80 divisors (see below), whose sum is σ = 10910908800. Its totient is φ = 1758951936.

The previous prime is 4544140229. The next prime is 4544140327. The reversal of 4544140240 is 420414454.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 4544140199 and 4544140208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368901 + ... + 381019.

It is an arithmetic number, because the mean of its divisors is an integer number (136386360).

Almost surely, 2^4544140240 is an apocalyptic number.

4544140240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4544140240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5455454400).

4544140240 is an abundant number, since it is smaller than the sum of its proper divisors (6366768560).

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

4544140240 is a wasteful number, since it uses less digits than its factorization.

4544140240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12284 (or 12278 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 28.

The square root of 4544140240 is about 67410.2383915085. The cubic root of 4544140240 is about 1656.3441391561.

Adding to 4544140240 its reverse (420414454), we get a palindrome (4964554694).

The spelling of 4544140240 in words is "four billion, five hundred forty-four million, one hundred forty thousand, two hundred forty".