306550042 has 16 divisors (see below), whose sum is σ = 469909440. Its totient is φ = 149949792.

The previous prime is 306550033. The next prime is 306550061. The reversal of 306550042 is 240055603.

It is a junction number, because it is equal to n+sod(n) for n = 306549989 and 306550016.

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, 8134 + ... + 26062.

It is an arithmetic number, because the mean of its divisors is an integer number (29369340).

Almost surely, 2^306550042 is an apocalyptic number.

306550042 is a deficient number, since it is larger than the sum of its proper divisors (163359398).

306550042 is a wasteful number, since it uses less digits than its factorization.

306550042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18117.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 306550042 is about 17508.5705298862. The cubic root of 306550042 is about 674.2699318263.

The spelling of 306550042 in words is "three hundred six million, five hundred fifty thousand, forty-two".