306223052 has 12 divisors (see below), whose sum is σ = 538134240. Its totient is φ = 152470416.

The previous prime is 306223033. The next prime is 306223067. The reversal of 306223052 is 250322603.

It is a happy number.

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, 159203 + ... + 161114.

It is an arithmetic number, because the mean of its divisors is an integer number (44844520).

Almost surely, 2^306223052 is an apocalyptic number.

It is an amenable number.

306223052 is a deficient number, since it is larger than the sum of its proper divisors (231911188).

306223052 is a wasteful number, since it uses less digits than its factorization.

306223052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320560 (or 320558 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 306223052 is about 17499.2300402046. The cubic root of 306223052 is about 674.0301037017.

Adding to 306223052 its reverse (250322603), we get a palindrome (556545655).

The spelling of 306223052 in words is "three hundred six million, two hundred twenty-three thousand, fifty-two".