306226 has 4 divisors (see below), whose sum is σ = 459342. Its totient is φ = 153112.

The previous prime is 306209. The next prime is 306239. The reversal of 306226 is 622603.

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., 251001 + 55225 = 501^2 + 235^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76555 + ... + 76558.

2³⁰⁶²²⁶ is an apocalyptic number.

306226 is a deficient number, since it is larger than the sum of its proper divisors (153116).

306226 is a wasteful number, since it uses less digits than its factorization.

306226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153115.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 306226 is about 553.3769059149. The cubic root of 306226 is about 67.4032266651.

Adding to 306226 its reverse (622603), we get a palindrome (928829).

It can be divided in two parts, 30622 and 6, that added together give a triangular number (30628 = T₂₄₇).

The spelling of 306226 in words is "three hundred six thousand, two hundred twenty-six".