306949740 has 48 divisors (see below), whose sum is σ = 860896512. Its totient is φ = 81716416.

The previous prime is 306949703. The next prime is 306949751. The reversal of 306949740 is 47949603.

It is a junction number, because it is equal to n+sod(n) for n = 306949692 and 306949701.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34867 + ... + 42773.

It is an arithmetic number, because the mean of its divisors is an integer number (17935344).

Almost surely, 2^306949740 is an apocalyptic number.

306949740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

306949740 is an abundant number, since it is smaller than the sum of its proper divisors (553946772).

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

306949740 is a wasteful number, since it uses less digits than its factorization.

306949740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8566 (or 8564 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 306949740 is about 17519.9811643734. The cubic root of 306949740 is about 674.5628555029.

The spelling of 306949740 in words is "three hundred six million, nine hundred forty-nine thousand, seven hundred forty".