30325428 has 72 divisors (see below), whose sum is σ = 90871872. Its totient is φ = 8662464.

The previous prime is 30325423. The next prime is 30325439. The reversal of 30325428 is 82452303.

30325428 is nontrivially palindromic in base 5.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30325423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4576 + ... + 9032.

Almost surely, 2^30325428 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 30325428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45435936).

30325428 is an abundant number, since it is smaller than the sum of its proper divisors (60546444).

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

30325428 is a wasteful number, since it uses less digits than its factorization.

30325428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4483 (or 4469 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 30325428 is about 5506.8528217122. The cubic root of 30325428 is about 311.8427461983.

The spelling of 30325428 in words is "thirty million, three hundred twenty-five thousand, four hundred twenty-eight".