730841281 has 8 divisors (see below), whose sum is σ = 734538024. Its totient is φ = 727153920.

The previous prime is 730841273. The next prime is 730841303. The reversal of 730841281 is 182148037.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 52707600 + 678133681 = 7260^2 + 26041^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 730841281 - 2³ = 730841273 is a prime.

It is a super-2 number, since 2×730841281² = 1068257956027441922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (730841381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192441 + ... + 196201.

It is an arithmetic number, because the mean of its divisors is an integer number (91817253).

Almost surely, 2^730841281 is an apocalyptic number.

It is an amenable number.

730841281 is a deficient number, since it is larger than the sum of its proper divisors (3696743).

730841281 is a wasteful number, since it uses less digits than its factorization.

730841281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4691.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 730841281 is about 27034.0762927088. The cubic root of 730841281 is about 900.7570917525.

The spelling of 730841281 in words is "seven hundred thirty million, eight hundred forty-one thousand, two hundred eighty-one".