730770923520 has 1344 divisors, whose sum is σ = 2945228267520. Its totient is φ = 171674173440.

The previous prime is 730770923513. The next prime is 730770923591. The reversal of 730770923520 is 25329077037.

730770923520 is a `hidden beast` number, since 7 + 30 + 7 + 7 + 0 + 92 + 3 + 520 = 666.

It is a super-2 number, since 2×730770923520² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5754101697 + ... + 5754101823.

It is an arithmetic number, because the mean of its divisors is an integer number (2191390080).

Almost surely, 2^730770923520 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 730770923520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1472614133760).

730770923520 is an abundant number, since it is smaller than the sum of its proper divisors (2214457344000).

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

730770923520 is a wasteful number, since it uses less digits than its factorization.

730770923520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 555660, while the sum is 45.

The spelling of 730770923520 in words is "seven hundred thirty billion, seven hundred seventy million, nine hundred twenty-three thousand, five hundred twenty".