730684426 has 8 divisors (see below), whose sum is σ = 1101590820. Its totient is φ = 363487488.

The previous prime is 730684417. The next prime is 730684439. The reversal of 730684426 is 624486037.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 665898025 + 64786401 = 25805^2 + 8049^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×730684426³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 926871 + ... + 927658.

Almost surely, 2^730684426 is an apocalyptic number.

730684426 is a deficient number, since it is larger than the sum of its proper divisors (370906394).

730684426 is a wasteful number, since it uses less digits than its factorization.

730684426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854728.

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 730684426 is about 27031.1750761967. The cubic root of 730684426 is about 900.6926462218.

The spelling of 730684426 in words is "seven hundred thirty million, six hundred eighty-four thousand, four hundred twenty-six".