30042936 has 96 divisors (see below), whose sum is σ = 101462400. Its totient is φ = 7801920.

The previous prime is 30042919. The next prime is 30042949. The reversal of 30042936 is 63924003.

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, 2835 + ... + 8253.

It is an arithmetic number, because the mean of its divisors is an integer number (1056900).

Almost surely, 2^30042936 is an apocalyptic number.

30042936 is a gapful number since it is divisible by the number (36) 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 30042936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50731200).

30042936 is an abundant number, since it is smaller than the sum of its proper divisors (71419464).

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

30042936 is a wasteful number, since it uses less digits than its factorization.

30042936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5449 (or 5442 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 30042936 is about 5481.1436762778. The cubic root of 30042936 is about 310.8714156387.

Adding to 30042936 its reverse (63924003), we get a palindrome (93966939).

The spelling of 30042936 in words is "thirty million, forty-two thousand, nine hundred thirty-six".