730318648 has 8 divisors (see below), whose sum is σ = 1369347480. Its totient is φ = 365159320.

The previous prime is 730318621. The next prime is 730318663. The reversal of 730318648 is 846813037.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 730318648.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45644908 + ... + 45644923.

It is an arithmetic number, because the mean of its divisors is an integer number (171168435).

Almost surely, 2^730318648 is an apocalyptic number.

It is an amenable number.

730318648 is a deficient number, since it is larger than the sum of its proper divisors (639028832).

730318648 is a wasteful number, since it uses less digits than its factorization.

730318648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91289837 (or 91289833 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 730318648 is about 27024.4083746527. The cubic root of 730318648 is about 900.5423266343.

The spelling of 730318648 in words is "seven hundred thirty million, three hundred eighteen thousand, six hundred forty-eight".