4393472544 has 144 divisors (see below), whose sum is σ = 12715702272. Its totient is φ = 1438746624.

The previous prime is 4393472521. The next prime is 4393472563. The reversal of 4393472544 is 4452743934.

4393472544 is a `hidden beast` number, since 4 + 3 + 9 + 34 + 72 + 544 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a self number, because there is not a number n which added to its sum of digits gives 4393472544.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4132557 + ... + 4133619.

It is an arithmetic number, because the mean of its divisors is an integer number (88303488).

Almost surely, 2^4393472544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4393472544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6357851136).

4393472544 is an abundant number, since it is smaller than the sum of its proper divisors (8322229728).

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

4393472544 is a wasteful number, since it uses less digits than its factorization.

4393472544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319 (or 1308 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 45.

The square root of 4393472544 is about 66283.2749945263. The cubic root of 4393472544 is about 1637.8318244777.

The spelling of 4393472544 in words is "four billion, three hundred ninety-three million, four hundred seventy-two thousand, five hundred forty-four".