304312226 has 4 divisors (see below), whose sum is σ = 456468342. Its totient is φ = 152156112.

The previous prime is 304312219. The next prime is 304312231. The reversal of 304312226 is 622213403.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 292444201 + 11868025 = 17101^2 + 3445^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76078055 + ... + 76078058.

Almost surely, 2^304312226 is an apocalyptic number.

304312226 is a deficient number, since it is larger than the sum of its proper divisors (152156116).

304312226 is a wasteful number, since it uses less digits than its factorization.

304312226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152156115.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 304312226 is about 17444.5471709643. The cubic root of 304312226 is about 672.6251991167.

Adding to 304312226 its reverse (622213403), we get a palindrome (926525629).

The spelling of 304312226 in words is "three hundred four million, three hundred twelve thousand, two hundred twenty-six".