7328543220 has 72 divisors (see below), whose sum is σ = 22947025920. Its totient is φ = 1891235520.

The previous prime is 7328543207. The next prime is 7328543221. The reversal of 7328543220 is 223458237.

7328543220 is a `hidden beast` number, since 7 + 328 + 5 + 4 + 322 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7328543221) 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 23 ways as a sum of consecutive naturals, for example, 651100 + ... + 662259.

Almost surely, 2^7328543220 is an apocalyptic number.

It is an amenable number.

7328543220 is an abundant number, since it is smaller than the sum of its proper divisors (15618482700).

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

7328543220 is a wasteful number, since it uses less digits than its factorization.

7328543220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313405 (or 1313400 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 7328543220 is about 85606.9110527883. The cubic root of 7328543220 is about 1942.4024528268.

The spelling of 7328543220 in words is "seven billion, three hundred twenty-eight million, five hundred forty-three thousand, two hundred twenty".