730536 has 32 divisors (see below), whose sum is σ = 1860000. Its totient is φ = 239040.

The previous prime is 730487. The next prime is 730537. The reversal of 730536 is 635037.

730536 is nontrivially palindromic in base 11.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 730536.

It is not an unprimeable number, because it can be changed into a prime (730537) by changing a digit.

730536 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1215 + ... + 1713.

It is an arithmetic number, because the mean of its divisors is an integer number (58125).

2⁷³⁰⁵³⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 730536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (930000).

730536 is an abundant number, since it is smaller than the sum of its proper divisors (1129464).

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

730536 is a wasteful number, since it uses less digits than its factorization.

730536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569 (or 565 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 24.

The square root of 730536 is about 854.7139872495. The cubic root of 730536 is about 90.0631655341.

The spelling of 730536 in words is "seven hundred thirty thousand, five hundred thirty-six".