309030048 has 72 divisors (see below), whose sum is σ = 885620736. Its totient is φ = 102211200.

The previous prime is 309029977. The next prime is 309030053. The reversal of 309030048 is 840030903.

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33633 + ... + 41823.

It is an arithmetic number, because the mean of its divisors is an integer number (12300288).

Almost surely, 2^309030048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 309030048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (442810368).

309030048 is an abundant number, since it is smaller than the sum of its proper divisors (576590688).

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

309030048 is a wasteful number, since it uses less digits than its factorization.

309030048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8338 (or 8327 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 309030048 is about 17579.2504959683. The cubic root of 309030048 is about 676.0833434817.

The spelling of 309030048 in words is "three hundred nine million, thirty thousand, forty-eight".