30328536 has 128 divisors (see below), whose sum is σ = 92897280. Its totient is φ = 8063616.

The previous prime is 30328523. The next prime is 30328547. The reversal of 30328536 is 63582303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 181525 + ... + 181691.

It is an arithmetic number, because the mean of its divisors is an integer number (725760).

Almost surely, 2^30328536 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 30328536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46448640).

30328536 is an abundant number, since it is smaller than the sum of its proper divisors (62568744).

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

30328536 is a wasteful number, since it uses less digits than its factorization.

30328536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 30328536 is about 5507.1350083324. The cubic root of 30328536 is about 311.8533992400.

The spelling of 30328536 in words is "thirty million, three hundred twenty-eight thousand, five hundred thirty-six".