4388724640 has 96 divisors (see below), whose sum is σ = 10629045504. Its totient is φ = 1711641600.

The previous prime is 4388724629. The next prime is 4388724643. The reversal of 4388724640 is 464278834.

It is not an unprimeable number, because it can be changed into a prime (4388724643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2307690 + ... + 2309590.

It is an arithmetic number, because the mean of its divisors is an integer number (110719224).

Almost surely, 2^4388724640 is an apocalyptic number.

4388724640 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 4388724640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5314522752).

4388724640 is an abundant number, since it is smaller than the sum of its proper divisors (6240320864).

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

4388724640 is a wasteful number, since it uses less digits than its factorization.

4388724640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2270 (or 2262 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 46.

The square root of 4388724640 is about 66247.4500641345. The cubic root of 4388724640 is about 1637.2416253376.

It can be divided in two parts, 4388 and 724640, that added together give a triangular number (729028 = T₁₂₀₇).

The spelling of 4388724640 in words is "four billion, three hundred eighty-eight million, seven hundred twenty-four thousand, six hundred forty".