730780 has 24 divisors (see below), whose sum is σ = 1562400. Its totient is φ = 287040.

The previous prime is 730777. The next prime is 730781. The reversal of 730780 is 87037.

730780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 921 + ... + 1519.

It is an arithmetic number, because the mean of its divisors is an integer number (65100).

2⁷³⁰⁷⁸⁰ is an apocalyptic number.

It is an amenable number.

730780 is an abundant number, since it is smaller than the sum of its proper divisors (831620).

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

730780 is a wasteful number, since it uses less digits than its factorization.

730780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 730780 is about 854.8567131397. The cubic root of 730780 is about 90.0731914905.

The spelling of 730780 in words is "seven hundred thirty thousand, seven hundred eighty".