730404 has 24 divisors (see below), whose sum is σ = 1893920. Its totient is φ = 243432.

The previous prime is 730399. The next prime is 730421. The reversal of 730404 is 404037.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

730404 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, 3274 + ... + 3489.

2⁷³⁰⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

730404 is an abundant number, since it is smaller than the sum of its proper divisors (1163516).

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

730404 is a wasteful number, since it uses less digits than its factorization.

730404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6776 (or 6768 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 730404 is about 854.6367649475. The cubic root of 730404 is about 90.0577407255.

The spelling of 730404 in words is "seven hundred thirty thousand, four hundred four".