730290816 has 192 divisors, whose sum is σ = 2225452320. Its totient is φ = 238298112.

The previous prime is 730290791. The next prime is 730290851. The reversal of 730290816 is 618092037.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1648291 + ... + 1648733.

Almost surely, 2^730290816 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 730290816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1112726160).

730290816 is an abundant number, since it is smaller than the sum of its proper divisors (1495161504).

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

730290816 is an equidigital number, since it uses as much as digits as its factorization.

730290816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 730290816 is about 27023.8934278538. The cubic root of 730290816 is about 900.5308867820.

The spelling of 730290816 in words is "seven hundred thirty million, two hundred ninety thousand, eight hundred sixteen".