306681848 has 32 divisors (see below), whose sum is σ = 641900160. Its totient is φ = 136157280.

The previous prime is 306681841. The next prime is 306681857. The reversal of 306681848 is 848186603.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 306681799 and 306681808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306681841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36740 + ... + 44307.

It is an arithmetic number, because the mean of its divisors is an integer number (20059380).

Almost surely, 2^306681848 is an apocalyptic number.

It is an amenable number.

306681848 is an abundant number, since it is smaller than the sum of its proper divisors (335218312).

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

306681848 is a wasteful number, since it uses less digits than its factorization.

306681848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81107 (or 81103 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 306681848 is about 17512.3341676659. The cubic root of 306681848 is about 674.3665556246.

The spelling of 306681848 in words is "three hundred six million, six hundred eighty-one thousand, eight hundred forty-eight".