7240320672 has 384 divisors, whose sum is σ = 22715126784. Its totient is φ = 1998716928.

The previous prime is 7240320631. The next prime is 7240320683. The reversal of 7240320672 is 2760230427.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 52848988 + ... + 52849124.

It is an arithmetic number, because the mean of its divisors is an integer number (59153976).

Almost surely, 2^7240320672 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 7240320672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11357563392).

7240320672 is an abundant number, since it is smaller than the sum of its proper divisors (15474806112).

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

7240320672 is a wasteful number, since it uses less digits than its factorization.

7240320672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 33.

The square root of 7240320672 is about 85090.0738746888. The cubic root of 7240320672 is about 1934.5766152321.

The spelling of 7240320672 in words is "seven billion, two hundred forty million, three hundred twenty thousand, six hundred seventy-two".