306650028 has 24 divisors (see below), whose sum is σ = 732157888. Its totient is φ = 99839376.

The previous prime is 306650023. The next prime is 306650051. The reversal of 306650028 is 820056603.

It is a junction number, because it is equal to n+sod(n) for n = 306649977 and 306650004.

It is not an unprimeable number, because it can be changed into a prime (306650023) 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, 296626 + ... + 297657.

Almost surely, 2^306650028 is an apocalyptic number.

It is an amenable number.

306650028 is an abundant number, since it is smaller than the sum of its proper divisors (425507860).

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

306650028 is a wasteful number, since it uses less digits than its factorization.

306650028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594333 (or 594331 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 306650028 is about 17511.4256415633. The cubic root of 306650028 is about 674.3432316857.

The spelling of 306650028 in words is "three hundred six million, six hundred fifty thousand, twenty-eight".