312280808 has 64 divisors (see below), whose sum is σ = 710246400. Its totient is φ = 125737920.

The previous prime is 312280757. The next prime is 312280819. The reversal of 312280808 is 808082213.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 133973 + ... + 136283.

It is an arithmetic number, because the mean of its divisors is an integer number (11097600).

Almost surely, 2^312280808 is an apocalyptic number.

312280808 is a gapful number since it is divisible by the number (38) 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 312280808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355123200).

312280808 is an abundant number, since it is smaller than the sum of its proper divisors (397965592).

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

312280808 is a wasteful number, since it uses less digits than its factorization.

312280808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2470 (or 2466 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 312280808 is about 17671.4687561617. The cubic root of 312280808 is about 678.4457060716.

The spelling of 312280808 in words is "three hundred twelve million, two hundred eighty thousand, eight hundred eight".