306226345 has 8 divisors (see below), whose sum is σ = 369376776. Its totient is φ = 243710976.

The previous prime is 306226279. The next prime is 306226391. The reversal of 306226345 is 543622603.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 23078416 + 283147929 = 4804^2 + 16827^2 .

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 306226345 - 2¹¹ = 306224297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157702 + ... + 159631.

It is an arithmetic number, because the mean of its divisors is an integer number (46172097).

Almost surely, 2^306226345 is an apocalyptic number.

It is an amenable number.

306226345 is a deficient number, since it is larger than the sum of its proper divisors (63150431).

306226345 is a wasteful number, since it uses less digits than its factorization.

306226345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317531.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 306226345 is about 17499.3241298057. The cubic root of 306226345 is about 674.0325197763.

Adding to 306226345 its reverse (543622603), we get a palindrome (849848948).

The spelling of 306226345 in words is "three hundred six million, two hundred twenty-six thousand, three hundred forty-five".