7278443382 has 64 divisors (see below), whose sum is σ = 17158440960. Its totient is φ = 2014782336.

The previous prime is 7278443363. The next prime is 7278443399. The reversal of 7278443382 is 2833448727.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 361608 + ... + 381204.

It is an arithmetic number, because the mean of its divisors is an integer number (268100640).

Almost surely, 2^7278443382 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7278443382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8579220480).

7278443382 is an abundant number, since it is smaller than the sum of its proper divisors (9879997578).

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

7278443382 is a wasteful number, since it uses less digits than its factorization.

7278443382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19885.

The product of its digits is 1806336, while the sum is 48.

The square root of 7278443382 is about 85313.7936209614. The cubic root of 7278443382 is about 1937.9660709468.

The spelling of 7278443382 in words is "seven billion, two hundred seventy-eight million, four hundred forty-three thousand, three hundred eighty-two".