30822128 has 40 divisors (see below), whose sum is σ = 62287680. Its totient is φ = 14757120.

The previous prime is 30822107. The next prime is 30822137. The reversal of 30822128 is 82122803.

It is a junction number, because it is equal to n+sod(n) for n = 30822097 and 30822106.

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, 83801 + ... + 84167.

It is an arithmetic number, because the mean of its divisors is an integer number (1557192).

Almost surely, 2^30822128 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 30822128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31143840).

30822128 is an abundant number, since it is smaller than the sum of its proper divisors (31465552).

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

30822128 is a wasteful number, since it uses less digits than its factorization.

30822128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585 (or 579 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 30822128 is about 5551.7680066804. The cubic root of 30822128 is about 313.5360912911.

The spelling of 30822128 in words is "thirty million, eight hundred twenty-two thousand, one hundred twenty-eight".