308285252 has 18 divisors (see below), whose sum is σ = 593004174. Its totient is φ = 140129440.

The previous prime is 308285251. The next prime is 308285287. The reversal of 308285252 is 252582803.

It can be written as a sum of positive squares in only one way, i.e., 178917376 + 129367876 = 13376^2 + 11374^2 .

It is not an unprimeable number, because it can be changed into a prime (308285251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 317993 + ... + 318960.

Almost surely, 2^308285252 is an apocalyptic number.

It is an amenable number.

308285252 is a deficient number, since it is larger than the sum of its proper divisors (284718922).

308285252 is a wasteful number, since it uses less digits than its factorization.

308285252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636979 (or 636966 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 308285252 is about 17558.0537645834. The cubic root of 308285252 is about 675.5397617731.

The spelling of 308285252 in words is "three hundred eight million, two hundred eighty-five thousand, two hundred fifty-two".