30512048 has 40 divisors (see below), whose sum is σ = 68343840. Its totient is φ = 12925440.

The previous prime is 30512039. The next prime is 30512051. The reversal of 30512048 is 84021503.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8438 + ... + 11498.

It is an arithmetic number, because the mean of its divisors is an integer number (1708596).

Almost surely, 2^30512048 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 30512048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34171920).

30512048 is an abundant number, since it is smaller than the sum of its proper divisors (37831792).

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

30512048 is a wasteful number, since it uses less digits than its factorization.

30512048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3165 (or 3159 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 30512048 is about 5523.7711755648. The cubic root of 30512048 is about 312.4811226997.

The spelling of 30512048 in words is "thirty million, five hundred twelve thousand, forty-eight".