730683040 has 36 divisors (see below), whose sum is σ = 1727046846. Its totient is φ = 292136448.

The previous prime is 730683029. The next prime is 730683049. The reversal of 730683040 is 40386037.

It can be written as a sum of positive squares in 3 ways, for example, as 190771344 + 539911696 = 13812^2 + 23236^2 .

It is a junction number, because it is equal to n+sod(n) for n = 730682993 and 730683011.

It is not an unprimeable number, because it can be changed into a prime (730683049) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 340852 + ... + 342988.

Almost surely, 2^730683040 is an apocalyptic number.

It is an amenable number.

730683040 is an abundant number, since it is smaller than the sum of its proper divisors (996363806).

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

730683040 is an frugal number, since it uses more digits than its factorization.

730683040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4289 (or 2144 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 730683040 is about 27031.1494391193. The cubic root of 730683040 is about 900.6920767280.

The spelling of 730683040 in words is "seven hundred thirty million, six hundred eighty-three thousand, forty".