730842 has 16 divisors (see below), whose sum is σ = 1670592. Its totient is φ = 208800.

The previous prime is 730837. The next prime is 730843. The reversal of 730842 is 248037.

It is an Ulam number.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (730843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8659 + ... + 8742.

It is an arithmetic number, because the mean of its divisors is an integer number (104412).

2⁷³⁰⁸⁴² is an apocalyptic number.

730842 is an abundant number, since it is smaller than the sum of its proper divisors (939750).

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

730842 is a wasteful number, since it uses less digits than its factorization.

730842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17413.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 730842 is about 854.8929757578. The cubic root of 730842 is about 90.0757387140.

Adding to 730842 its reverse (248037), we get a palindrome (978879).

It can be divided in two parts, 7308 and 42, that multiplied together give a triangular number (306936 = T₇₈₃).

The spelling of 730842 in words is "seven hundred thirty thousand, eight hundred forty-two".