306056028 has 48 divisors (see below), whose sum is σ = 753016320. Its totient is φ = 96482304.

The previous prime is 306056017. The next prime is 306056029. The reversal of 306056028 is 820650603.

It is a junction number, because it is equal to n+sod(n) for n = 306055986 and 306056004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306056029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250876 + ... + 252092.

It is an arithmetic number, because the mean of its divisors is an integer number (15687840).

Almost surely, 2^306056028 is an apocalyptic number.

306056028 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

306056028 is an abundant number, since it is smaller than the sum of its proper divisors (446960292).

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

306056028 is a wasteful number, since it uses less digits than its factorization.

306056028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2346 (or 2344 counting only the distinct ones).

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

The square root of 306056028 is about 17494.4570650249. The cubic root of 306056028 is about 673.9075354434.

The spelling of 306056028 in words is "three hundred six million, fifty-six thousand, twenty-eight".