4143744720 has 90 divisors (see below), whose sum is σ = 13921879218. Its totient is φ = 1104537984.

The previous prime is 4143744643. The next prime is 4143744743. The reversal of 4143744720 is 274473414.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3314995776 + 828748944 = 57576^2 + 28788^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1726081 + ... + 1728479.

Almost surely, 2^4143744720 is an apocalyptic number.

4143744720 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 4143744720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6960939609).

4143744720 is an abundant number, since it is smaller than the sum of its proper divisors (9778134498).

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

4143744720 is an equidigital number, since it uses as much as digits as its factorization.

4143744720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4817 (or 2409 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 36.

The square root of 4143744720 is about 64371.9249362639. The cubic root of 4143744720 is about 1606.1927605658.

The spelling of 4143744720 in words is "four billion, one hundred forty-three million, seven hundred forty-four thousand, seven hundred twenty".