7273952720 has 20 divisors (see below), whose sum is σ = 16911940260. Its totient is φ = 2909581056.

The previous prime is 7273952663. The next prime is 7273952759. The reversal of 7273952720 is 272593727.

It can be written as a sum of positive squares in 2 ways, for example, as 5025675664 + 2248277056 = 70892^2 + 47416^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45462125 + ... + 45462284.

It is an arithmetic number, because the mean of its divisors is an integer number (845597013).

Almost surely, 2^7273952720 is an apocalyptic number.

It is an amenable number.

7273952720 is an abundant number, since it is smaller than the sum of its proper divisors (9637987540).

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

7273952720 is a wasteful number, since it uses less digits than its factorization.

7273952720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90924422 (or 90924416 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 44.

The square root of 7273952720 is about 85287.4710611119. The cubic root of 7273952720 is about 1937.5674261377.

The spelling of 7273952720 in words is "seven billion, two hundred seventy-three million, nine hundred fifty-two thousand, seven hundred twenty".