730823280 has 80 divisors (see below), whose sum is σ = 2471520384. Its totient is φ = 177168640.

The previous prime is 730823279. The next prime is 730823299. The reversal of 730823280 is 82328037.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 135774 + ... + 141053.

Almost surely, 2^730823280 is an apocalyptic number.

It is an amenable number.

730823280 is an abundant number, since it is smaller than the sum of its proper divisors (1740697104).

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

730823280 is a wasteful number, since it uses less digits than its factorization.

730823280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276854 (or 276848 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 730823280 is about 27033.7433589949. The cubic root of 730823280 is about 900.7496963203.

The spelling of 730823280 in words is "seven hundred thirty million, eight hundred twenty-three thousand, two hundred eighty".