306948386 has 16 divisors (see below), whose sum is σ = 492162048. Its totient is φ = 143220000.

The previous prime is 306948377. The next prime is 306948403. The reversal of 306948386 is 683849603.

It is a self number, because there is not a number n which added to its sum of digits gives 306948386.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79490 + ... + 83261.

It is an arithmetic number, because the mean of its divisors is an integer number (30760128).

Almost surely, 2^306948386 is an apocalyptic number.

306948386 is a deficient number, since it is larger than the sum of its proper divisors (185213662).

306948386 is a wasteful number, since it uses less digits than its factorization.

306948386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162817.

The product of its (nonzero) digits is 746496, while the sum is 47.

The square root of 306948386 is about 17519.9425227368. The cubic root of 306948386 is about 674.5618636365.

The spelling of 306948386 in words is "three hundred six million, nine hundred forty-eight thousand, three hundred eighty-six".