730257 has 8 divisors (see below), whose sum is σ = 1062240. Its totient is φ = 442560.

The previous prime is 730253. The next prime is 730277. The reversal of 730257 is 752037.

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

It is not a de Polignac number, because 730257 - 2² = 730253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (730253) 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, 11032 + ... + 11097.

It is an arithmetic number, because the mean of its divisors is an integer number (132780).

2⁷³⁰²⁵⁷ is an apocalyptic number.

It is an amenable number.

730257 is a deficient number, since it is larger than the sum of its proper divisors (331983).

730257 is a wasteful number, since it uses less digits than its factorization.

730257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22143.

The product of its (nonzero) digits is 1470, while the sum is 24.

The square root of 730257 is about 854.5507591712. The cubic root of 730257 is about 90.0516986921.

The spelling of 730257 in words is "seven hundred thirty thousand, two hundred fifty-seven".