30328792 has 32 divisors (see below), whose sum is σ = 61598880. Its totient is φ = 13916160.

The previous prime is 30328787. The next prime is 30328813. The reversal of 30328792 is 29782303.

It is a congruent number.

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, 19317 + ... + 20827.

It is an arithmetic number, because the mean of its divisors is an integer number (1924965).

Almost surely, 2^30328792 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 30328792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30799440).

30328792 is an abundant number, since it is smaller than the sum of its proper divisors (31270088).

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

30328792 is a wasteful number, since it uses less digits than its factorization.

30328792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723 (or 1719 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 30328792 is about 5507.1582508586. The cubic root of 30328792 is about 311.8542766781.

The spelling of 30328792 in words is "thirty million, three hundred twenty-eight thousand, seven hundred ninety-two".