308205352 has 64 divisors (see below), whose sum is σ = 715478400. Its totient is φ = 121201920.

The previous prime is 308205349. The next prime is 308205361. The reversal of 308205352 is 253502803.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 308205352.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130599 + ... + 132937.

It is an arithmetic number, because the mean of its divisors is an integer number (11179350).

Almost surely, 2^308205352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 308205352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357739200).

308205352 is an abundant number, since it is smaller than the sum of its proper divisors (407273048).

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

308205352 is a wasteful number, since it uses less digits than its factorization.

308205352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2546 (or 2542 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 308205352 is about 17555.7783080102. The cubic root of 308205352 is about 675.4813956005.

The spelling of 308205352 in words is "three hundred eight million, two hundred five thousand, three hundred fifty-two".