305050028 has 6 divisors (see below), whose sum is σ = 533837556. Its totient is φ = 152525012.

The previous prime is 305050021. The next prime is 305050061. The reversal of 305050028 is 820050503.

It is a junction number, because it is equal to n+sod(n) for n = 305049985 and 305050012.

It is not an unprimeable number, because it can be changed into a prime (305050021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38131250 + ... + 38131257.

It is an arithmetic number, because the mean of its divisors is an integer number (88972926).

Almost surely, 2^305050028 is an apocalyptic number.

It is an amenable number.

305050028 is a deficient number, since it is larger than the sum of its proper divisors (228787528).

305050028 is a wasteful number, since it uses less digits than its factorization.

305050028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76262511 (or 76262509 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 305050028 is about 17465.6814353177. The cubic root of 305050028 is about 673.1683514578.

The spelling of 305050028 in words is "three hundred five million, fifty thousand, twenty-eight".