7324728320 has 352 divisors, whose sum is σ = 22009344000. Its totient is φ = 2277310464.

The previous prime is 7324728263. The next prime is 7324728349. The reversal of 7324728320 is 238274237.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36807581 + ... + 36807779.

Almost surely, 2^7324728320 is an apocalyptic number.

7324728320 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7324728320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11004672000).

7324728320 is an abundant number, since it is smaller than the sum of its proper divisors (14684615680).

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

7324728320 is a wasteful number, since it uses less digits than its factorization.

7324728320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 38.

The square root of 7324728320 is about 85584.6266568944. The cubic root of 7324728320 is about 1942.0653527580.

The spelling of 7324728320 in words is "seven billion, three hundred twenty-four million, seven hundred twenty-eight thousand, three hundred twenty".