730840492800 has 1728 divisors, whose sum is σ = 3105951206400. Its totient is φ = 166418841600.

The previous prime is 730840492721. The next prime is 730840492801. The reversal of 730840492800 is 8294048037.

730840492800 is a `hidden beast` number, since 7 + 3 + 0 + 84 + 0 + 492 + 80 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1728).

It is a super-2 number, since 2×730840492800² (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 not an unprimeable number, because it can be changed into a prime (730840492801) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3191443086 + ... + 3191443314.

Almost surely, 2^730840492800 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 730840492800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1552975603200).

730840492800 is an abundant number, since it is smaller than the sum of its proper divisors (2375110713600).

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

730840492800 is a wasteful number, since it uses less digits than its factorization.

730840492800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 730840492800 in words is "seven hundred thirty billion, eight hundred forty million, four hundred ninety-two thousand, eight hundred".