30533442 has 8 divisors (see below), whose sum is σ = 61066896. Its totient is φ = 10177812.

The previous prime is 30533431. The next prime is 30533449. The reversal of 30533442 is 24433503.

It is a sphenic number, since it is the product of 3 distinct primes.

30533442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (30533449) 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 3 ways as a sum of consecutive naturals, for example, 2544448 + ... + 2544459.

It is an arithmetic number, because the mean of its divisors is an integer number (7633362).

Almost surely, 2^30533442 is an apocalyptic number.

30533442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30533442 is a wasteful number, since it uses less digits than its factorization.

30533442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5088912.

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 30533442 is about 5525.7073755312. The cubic root of 30533442 is about 312.5541393134.

Adding to 30533442 its reverse (24433503), we get a palindrome (54966945).

The spelling of 30533442 in words is "thirty million, five hundred thirty-three thousand, four hundred forty-two".