30632028 has 96 divisors (see below), whose sum is σ = 91123200. Its totient is φ = 7796736.

The previous prime is 30632023. The next prime is 30632029. The reversal of 30632028 is 82023603.

It is a super-2 number, since 2×30632028² = 1876642278785568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30631989 and 30632007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30632023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26568 + ... + 27696.

It is an arithmetic number, because the mean of its divisors is an integer number (949200).

Almost surely, 2^30632028 is an apocalyptic number.

30632028 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30632028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45561600).

30632028 is an abundant number, since it is smaller than the sum of its proper divisors (60491172).

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

30632028 is a wasteful number, since it uses less digits than its factorization.

30632028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179 (or 1177 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 30632028 is about 5534.6208542230. The cubic root of 30632028 is about 312.8901682306.

The spelling of 30632028 in words is "thirty million, six hundred thirty-two thousand, twenty-eight".