730632 has 32 divisors (see below), whose sum is σ = 2088000. Its totient is φ = 208704.

The previous prime is 730619. The next prime is 730633. The reversal of 730632 is 236037.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 730599 and 730608.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 730632.

It is not an unprimeable number, because it can be changed into a prime (730633) by changing a digit.

730632 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2007 + ... + 2342.

It is an arithmetic number, because the mean of its divisors is an integer number (65250).

2⁷³⁰⁶³² is an apocalyptic number.

It is an amenable number.

730632 is an abundant number, since it is smaller than the sum of its proper divisors (1357368).

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

730632 is a wasteful number, since it uses less digits than its factorization.

730632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4365 (or 4361 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 730632 is about 854.7701445418. The cubic root of 730632 is about 90.0671104390.

Adding to 730632 its reverse (236037), we get a palindrome (966669).

The spelling of 730632 in words is "seven hundred thirty thousand, six hundred thirty-two".