305212006 has 16 divisors (see below), whose sum is σ = 499760208. Its totient is φ = 138643200.

The previous prime is 305211971. The next prime is 305212009. The reversal of 305212006 is 600212503.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305212009) 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, 40366 + ... + 47326.

It is an arithmetic number, because the mean of its divisors is an integer number (31235013).

Almost surely, 2^305212006 is an apocalyptic number.

305212006 is a deficient number, since it is larger than the sum of its proper divisors (194548202).

305212006 is a wasteful number, since it uses less digits than its factorization.

305212006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8967.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 305212006 is about 17470.3178562956. The cubic root of 305212006 is about 673.2874785512.

Adding to 305212006 its reverse (600212503), we get a palindrome (905424509).

The spelling of 305212006 in words is "three hundred five million, two hundred twelve thousand, six".