730281 has 8 divisors (see below), whose sum is σ = 978880. Its totient is φ = 484272.

The previous prime is 730277. The next prime is 730283. The reversal of 730281 is 182037.

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

It is not a de Polignac number, because 730281 - 2² = 730277 is a prime.

It is a super-2 number, since 2×730281² = 1066620677922, which contains 22 as substring.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 730281.

It is not an unprimeable number, because it can be changed into a prime (730283) 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, 156 + ... + 1218.

It is an arithmetic number, because the mean of its divisors is an integer number (122360).

2⁷³⁰²⁸¹ is an apocalyptic number.

It is an amenable number.

730281 is a deficient number, since it is larger than the sum of its proper divisors (248599).

730281 is a wasteful number, since it uses less digits than its factorization.

730281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 730281 is about 854.5648015218. The cubic root of 730281 is about 90.0526852019.

The spelling of 730281 in words is "seven hundred thirty thousand, two hundred eighty-one".