30328870 has 64 divisors (see below), whose sum is σ = 65028096. Its totient is φ = 10039680.

The previous prime is 30328847. The next prime is 30328871. The reversal of 30328870 is 7882303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30328871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 181527 + ... + 181693.

It is an arithmetic number, because the mean of its divisors is an integer number (1016064).

Almost surely, 2^30328870 is an apocalyptic number.

30328870 is an abundant number, since it is smaller than the sum of its proper divisors (34699226).

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

30328870 is a wasteful number, since it uses less digits than its factorization.

30328870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 30328870 is about 5507.1653325463. The cubic root of 30328870 is about 311.8545440216.

The spelling of 30328870 in words is "thirty million, three hundred twenty-eight thousand, eight hundred seventy".