730894388 has 18 divisors (see below), whose sum is σ = 1487892546. Its totient is φ = 313240368.

The previous prime is 730894369. The next prime is 730894421. The reversal of 730894388 is 883498037.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 724040464 + 6853924 = 26908^2 + 2618^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1864331 + ... + 1864722.

It is an arithmetic number, because the mean of its divisors is an integer number (82660697).

Almost surely, 2^730894388 is an apocalyptic number.

It is an amenable number.

730894388 is an abundant number, since it is smaller than the sum of its proper divisors (756998158).

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

730894388 is a wasteful number, since it uses less digits than its factorization.

730894388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3729071 (or 3729062 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 50.

The square root of 730894388 is about 27035.0584981797. The cubic root of 730894388 is about 900.7789092340.

It can be divided in two parts, 73089 and 4388, that added together give a palindrome (77477).

The spelling of 730894388 in words is "seven hundred thirty million, eight hundred ninety-four thousand, three hundred eighty-eight".