30054836 has 72 divisors (see below), whose sum is σ = 65499840. Its totient is φ = 12004608.

The previous prime is 30054821. The next prime is 30054847. The reversal of 30054836 is 63845003.

It is a junction number, because it is equal to n+sod(n) for n = 30054799 and 30054808.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 265916 + ... + 266028.

It is an arithmetic number, because the mean of its divisors is an integer number (909720).

Almost surely, 2^30054836 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 30054836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32749920).

30054836 is an abundant number, since it is smaller than the sum of its proper divisors (35445004).

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

30054836 is a wasteful number, since it uses less digits than its factorization.

30054836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 30054836 is about 5482.2291086747. The cubic root of 30054836 is about 310.9124555858.

Adding to 30054836 its reverse (63845003), we get a palindrome (93899839).

The spelling of 30054836 in words is "thirty million, fifty-four thousand, eight hundred thirty-six".