730891226 has 8 divisors (see below), whose sum is σ = 1180670484. Its totient is φ = 337334400.

The previous prime is 730891207. The next prime is 730891237. The reversal of 730891226 is 622198037.

It is a Cunningham number, because it is equal to 27035²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 730891225 + 1 = 27035^2 + 1^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 730891226.

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, 14055575 + ... + 14055626.

Almost surely, 2^730891226 is an apocalyptic number.

730891226 is a deficient number, since it is larger than the sum of its proper divisors (449779258).

730891226 is a wasteful number, since it uses less digits than its factorization.

730891226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28111216.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 730891226 is about 27035.0000184945. Note that the first 4 decimals coincide. The cubic root of 730891226 is about 900.7776102469. Note that the first 3 decimals are identical.

The spelling of 730891226 in words is "seven hundred thirty million, eight hundred ninety-one thousand, two hundred twenty-six".