4144143440 has 40 divisors (see below), whose sum is σ = 9648668160. Its totient is φ = 1655328896.

The previous prime is 4144143439. The next prime is 4144143463. The reversal of 4144143440 is 443414414.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21497 + ... + 93543.

It is an arithmetic number, because the mean of its divisors is an integer number (241216704).

Almost surely, 2^4144143440 is an apocalyptic number.

4144143440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4144143440 is an abundant number, since it is smaller than the sum of its proper divisors (5504524720).

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

4144143440 is a wasteful number, since it uses less digits than its factorization.

4144143440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72779 (or 72773 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

The square root of 4144143440 is about 64375.0218640740. The cubic root of 4144143440 is about 1606.2442760171.

Adding to 4144143440 its reverse (443414414), we get a palindrome (4587557854).

The spelling of 4144143440 in words is "four billion, one hundred forty-four million, one hundred forty-three thousand, four hundred forty".