30449328 has 80 divisors (see below), whose sum is σ = 96827136. Its totient is φ = 8029440.

The previous prime is 30449327. The next prime is 30449357. The reversal of 30449328 is 82394403.

It is not an unprimeable number, because it can be changed into a prime (30449327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 883 + ... + 7853.

Almost surely, 2^30449328 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 30449328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48413568).

30449328 is an abundant number, since it is smaller than the sum of its proper divisors (66377808).

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

30449328 is a wasteful number, since it uses less digits than its factorization.

30449328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7002 (or 6996 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 30449328 is about 5518.0909742410. The cubic root of 30449328 is about 312.2668656914.

The spelling of 30449328 in words is "thirty million, four hundred forty-nine thousand, three hundred twenty-eight".