306422378 has 8 divisors (see below), whose sum is σ = 461557440. Its totient is φ = 152569900.

The previous prime is 306422377. The next prime is 306422387. The reversal of 306422378 is 873224603.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (306422377) 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, 320048 + ... + 321003.

It is an arithmetic number, because the mean of its divisors is an integer number (57694680).

Almost surely, 2^306422378 is an apocalyptic number.

306422378 is a deficient number, since it is larger than the sum of its proper divisors (155135062).

306422378 is a wasteful number, since it uses less digits than its factorization.

306422378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641292.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 306422378 is about 17504.9243928673. The cubic root of 306422378 is about 674.1763180200.

The spelling of 306422378 in words is "three hundred six million, four hundred twenty-two thousand, three hundred seventy-eight".