730457 has 16 divisors (see below), whose sum is σ = 940800. Its totient is φ = 551232.

The previous prime is 730451. The next prime is 730459. The reversal of 730457 is 754037.

730457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 730457 - 2¹⁴ = 714073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (730451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1919 + ... + 2267.

It is an arithmetic number, because the mean of its divisors is an integer number (58800).

2⁷³⁰⁴⁵⁷ is an apocalyptic number.

730457 is the 698-th pentagonal number.

It is an amenable number.

730457 is a deficient number, since it is larger than the sum of its proper divisors (210343).

730457 is a wasteful number, since it uses less digits than its factorization.

730457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392.

The product of its (nonzero) digits is 2940, while the sum is 26.

The square root of 730457 is about 854.6677717102. The cubic root of 730457 is about 90.0599189469.

It can be divided in two parts, 7304 and 57, that multiplied together give a triangular number (416328 = T₉₁₂).

The spelling of 730457 in words is "seven hundred thirty thousand, four hundred fifty-seven".