395680308 has 12 divisors (see below), whose sum is σ = 923254080. Its totient is φ = 131893432.

The previous prime is 395680303. The next prime is 395680309. The reversal of 395680308 is 803086593.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×395680308³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 395680308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395680303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16486668 + ... + 16486691.

It is an arithmetic number, because the mean of its divisors is an integer number (76937840).

Almost surely, 2^395680308 is an apocalyptic number.

It is an amenable number.

395680308 is an abundant number, since it is smaller than the sum of its proper divisors (527573772).

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

395680308 is a wasteful number, since it uses less digits than its factorization.

395680308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32973366 (or 32973364 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 395680308 is about 19891.7145565685. The cubic root of 395680308 is about 734.1443808171.

The spelling of 395680308 in words is "three hundred ninety-five million, six hundred eighty thousand, three hundred eight".