730320215040 has 528 divisors, whose sum is σ = 2730832741728. Its totient is φ = 179399688192.

The previous prime is 730320215029. The next prime is 730320215059. The reversal of 730320215040 is 40512023037.

730320215040 is a `hidden beast` number, since 7 + 303 + 202 + 150 + 4 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 730320214995 and 730320215013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 391172187 + ... + 391174053.

Almost surely, 2^730320215040 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 730320215040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1365416370864).

730320215040 is an abundant number, since it is smaller than the sum of its proper divisors (2000512526688).

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

730320215040 is a wasteful number, since it uses less digits than its factorization.

730320215040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564 (or 2543 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

Adding to 730320215040 its reverse (40512023037), we get a palindrome (770832238077).

The spelling of 730320215040 in words is "seven hundred thirty billion, three hundred twenty million, two hundred fifteen thousand, forty".