730424 has 8 divisors (see below), whose sum is σ = 1369560. Its totient is φ = 365208.

The previous prime is 730421. The next prime is 730447. The reversal of 730424 is 424037.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 730396 and 730405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45644 + ... + 45659.

It is an arithmetic number, because the mean of its divisors is an integer number (171195).

2⁷³⁰⁴²⁴ is an apocalyptic number.

It is an amenable number.

730424 is a deficient number, since it is larger than the sum of its proper divisors (639136).

730424 is a wasteful number, since it uses less digits than its factorization.

730424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91309 (or 91305 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 730424 is about 854.6484657448. The cubic root of 730424 is about 90.0585627082.

The spelling of 730424 in words is "seven hundred thirty thousand, four hundred twenty-four".