730421453138 has 8 divisors (see below), whose sum is σ = 1179911578188. Its totient is φ = 337117593744.

The previous prime is 730421453137. The next prime is 730421453173. The reversal of 730421453138 is 831354124037.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 710222506009 + 20198947129 = 842747^2 + 142123^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 730421453095 and 730421453104.

It is not an unprimeable number, because it can be changed into a prime (730421453137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14046566381 + ... + 14046566432.

Almost surely, 2^730421453138 is an apocalyptic number.

730421453138 is a deficient number, since it is larger than the sum of its proper divisors (449490125050).

730421453138 is a wasteful number, since it uses less digits than its factorization.

730421453138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28093132828.

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 730421453138 in words is "seven hundred thirty billion, four hundred twenty-one million, four hundred fifty-three thousand, one hundred thirty-eight".