730905078 has 8 divisors (see below), whose sum is σ = 1461810168. Its totient is φ = 243635024.

The previous prime is 730905031. The next prime is 730905079. The reversal of 730905078 is 870509037.

It is a sphenic number, since it is the product of 3 distinct primes.

730905078 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730905079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60908751 + ... + 60908762.

It is an arithmetic number, because the mean of its divisors is an integer number (182726271).

Almost surely, 2^730905078 is an apocalyptic number.

730905078 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

730905078 is a wasteful number, since it uses less digits than its factorization.

730905078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121817518.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 730905078 is about 27035.2562037056. The cubic root of 730905078 is about 900.7833007848.

The spelling of 730905078 in words is "seven hundred thirty million, nine hundred five thousand, seventy-eight".