7289280448 has 56 divisors (see below), whose sum is σ = 14996434320. Its totient is φ = 3512801280.

The previous prime is 7289280421. The next prime is 7289280539. The reversal of 7289280448 is 8440829827.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7289280395 and 7289280404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201058 + ... + 234526.

It is an arithmetic number, because the mean of its divisors is an integer number (267793470).

Almost surely, 2^7289280448 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 7289280448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7498217160).

7289280448 is an abundant number, since it is smaller than the sum of its proper divisors (7707153872).

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

7289280448 is a wasteful number, since it uses less digits than its factorization.

7289280448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33605 (or 33595 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 52.

The square root of 7289280448 is about 85377.2829738684. The cubic root of 7289280448 is about 1938.9274235473.

The spelling of 7289280448 in words is "seven billion, two hundred eighty-nine million, two hundred eighty thousand, four hundred forty-eight".