378805308 has 96 divisors (see below), whose sum is σ = 1090575360. Its totient is φ = 99939840.

The previous prime is 378805291. The next prime is 378805309. The reversal of 378805308 is 803508873.

It is a super-2 number, since 2×378805308² = 286986922737949728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 378805308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378805309) 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 31 ways as a sum of consecutive naturals, for example, 52648 + ... + 59408.

It is an arithmetic number, because the mean of its divisors is an integer number (11360160).

Almost surely, 2^378805308 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 378805308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (545287680).

378805308 is an abundant number, since it is smaller than the sum of its proper divisors (711770052).

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

378805308 is a wasteful number, since it uses less digits than its factorization.

378805308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6827 (or 6825 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 378805308 is about 19462.9213634542. The cubic root of 378805308 is about 723.5557824653. Note that the first 3 decimals are identical.

The spelling of 378805308 in words is "three hundred seventy-eight million, eight hundred five thousand, three hundred eight".