4144432540 has 24 divisors (see below), whose sum is σ = 8721498240. Its totient is φ = 1654308288.

The previous prime is 4144432531. The next prime is 4144432541. The reversal of 4144432540 is 452344414.

4144432540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×4144432540² = 34352642157221703200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4144432541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206727 + ... + 225886.

It is an arithmetic number, because the mean of its divisors is an integer number (363395760).

Almost surely, 2^4144432540 is an apocalyptic number.

It is an amenable number.

4144432540 is an abundant number, since it is smaller than the sum of its proper divisors (4577065700).

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

4144432540 is a wasteful number, since it uses less digits than its factorization.

4144432540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433101 (or 433099 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

The square root of 4144432540 is about 64377.2672610449. The cubic root of 4144432540 is about 1606.2816262705.

Adding to 4144432540 its reverse (452344414), we get a palindrome (4596776954).

It can be divided in two parts, 41444 and 32540, that added together give a square (73984 = 272²).

The spelling of 4144432540 in words is "four billion, one hundred forty-four million, four hundred thirty-two thousand, five hundred forty".