308027128 has 8 divisors (see below), whose sum is σ = 577550880. Its totient is φ = 154013560.

The previous prime is 308027119. The next prime is 308027147. The reversal of 308027128 is 821720803.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 308027128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19251688 + ... + 19251703.

It is an arithmetic number, because the mean of its divisors is an integer number (72193860).

Almost surely, 2^308027128 is an apocalyptic number.

It is an amenable number.

308027128 is a deficient number, since it is larger than the sum of its proper divisors (269523752).

308027128 is a wasteful number, since it uses less digits than its factorization.

308027128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38503397 (or 38503393 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 308027128 is about 17550.7016383961. The cubic root of 308027128 is about 675.3511683477.

The spelling of 308027128 in words is "three hundred eight million, twenty-seven thousand, one hundred twenty-eight".