7273343844 has 72 divisors (see below), whose sum is σ = 19884933432. Its totient is φ = 2228313600.

The previous prime is 7273343827. The next prime is 7273343881. The reversal of 7273343844 is 4483433727.

It can be written as a sum of positive squares in 4 ways, for example, as 39841344 + 7233502500 = 6312^2 + 85050^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7273343844.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75694 + ... + 142394.

It is an arithmetic number, because the mean of its divisors is an integer number (276179631).

Almost surely, 2^7273343844 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 7273343844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9942466716).

7273343844 is an abundant number, since it is smaller than the sum of its proper divisors (12611589588).

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

7273343844 is a wasteful number, since it uses less digits than its factorization.

7273343844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66957 (or 66952 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 45.

The square root of 7273343844 is about 85283.9014351478. The cubic root of 7273343844 is about 1937.5133623997.

The spelling of 7273343844 in words is "seven billion, two hundred seventy-three million, three hundred forty-three thousand, eight hundred forty-four".