306506540 has 12 divisors (see below), whose sum is σ = 643663776. Its totient is φ = 122602608.

The previous prime is 306506531. The next prime is 306506567. The reversal of 306506540 is 45605603.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7662644 + ... + 7662683.

It is an arithmetic number, because the mean of its divisors is an integer number (53638648).

Almost surely, 2^306506540 is an apocalyptic number.

It is an amenable number.

306506540 is an abundant number, since it is smaller than the sum of its proper divisors (337157236).

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

306506540 is a wasteful number, since it uses less digits than its factorization.

306506540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15325336 (or 15325334 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 306506540 is about 17507.3281799365. The cubic root of 306506540 is about 674.2380354808.

The spelling of 306506540 in words is "three hundred six million, five hundred six thousand, five hundred forty".