308305296 has 120 divisors (see below), whose sum is σ = 936007800. Its totient is φ = 94169088.

The previous prime is 308305279. The next prime is 308305297. The reversal of 308305296 is 692503803.

It can be written as a sum of positive squares in 4 ways, for example, as 32080896 + 276224400 = 5664^2 + 16620^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 308305296.

It is not an unprimeable number, because it can be changed into a prime (308305297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 293380 + ... + 294428.

It is an arithmetic number, because the mean of its divisors is an integer number (7800065).

Almost surely, 2^308305296 is an apocalyptic number.

308305296 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 308305296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (468003900).

308305296 is an abundant number, since it is smaller than the sum of its proper divisors (627702504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

308305296 is a wasteful number, since it uses less digits than its factorization.

308305296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233 (or 1224 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 308305296 is about 17558.6245474980. The cubic root of 308305296 is about 675.5544021378.

The spelling of 308305296 in words is "three hundred eight million, three hundred five thousand, two hundred ninety-six".