7285304520 has 192 divisors, whose sum is σ = 26840923200. Its totient is φ = 1698900480.

The previous prime is 7285304497. The next prime is 7285304527. The reversal of 7285304520 is 254035827.

7285304520 is a `hidden beast` number, since 72 + 8 + 530 + 4 + 52 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (7285304527) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 47955 + ... + 129885.

It is an arithmetic number, because the mean of its divisors is an integer number (139796475).

Almost surely, 2^7285304520 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 7285304520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13420461600).

7285304520 is an abundant number, since it is smaller than the sum of its proper divisors (19555618680).

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

7285304520 is a wasteful number, since it uses less digits than its factorization.

7285304520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81980 (or 81973 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 7285304520 is about 85353.9953370667. The cubic root of 7285304520 is about 1938.5748309999.

The spelling of 7285304520 in words is "seven billion, two hundred eighty-five million, three hundred four thousand, five hundred twenty".