730245 has 16 divisors (see below), whose sum is σ = 1183680. Its totient is φ = 384384.

The previous prime is 730237. The next prime is 730253. The reversal of 730245 is 542037.

730245 = T₈₁ + T₈₂ + ... + T₁₆₉.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (730237) and next prime (730253).

It is not a de Polignac number, because 730245 - 2³ = 730237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1062 + ... + 1608.

It is an arithmetic number, because the mean of its divisors is an integer number (73980).

2⁷³⁰²⁴⁵ is an apocalyptic number.

It is an amenable number.

730245 is a deficient number, since it is larger than the sum of its proper divisors (453435).

730245 is a wasteful number, since it uses less digits than its factorization.

730245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 730245 is about 854.5437379093. The cubic root of 730245 is about 90.0512054291.

The spelling of 730245 in words is "seven hundred thirty thousand, two hundred forty-five".