308442960 has 240 divisors, whose sum is σ = 1246527360. Its totient is φ = 66769920.

The previous prime is 308442947. The next prime is 308442961. The reversal of 308442960 is 69244803.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308442961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 94150 + ... + 97370.

It is an arithmetic number, because the mean of its divisors is an integer number (5193864).

Almost surely, 2^308442960 is an apocalyptic number.

308442960 is a gapful number since it is divisible by the number (30) 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 308442960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (623263680).

308442960 is an abundant number, since it is smaller than the sum of its proper divisors (938084400).

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

308442960 is a wasteful number, since it uses less digits than its factorization.

308442960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3266 (or 3257 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 308442960 is about 17562.5442348197. The cubic root of 308442960 is about 675.6549363419.

The spelling of 308442960 in words is "three hundred eight million, four hundred forty-two thousand, nine hundred sixty".