30445242 has 8 divisors (see below), whose sum is σ = 60890496. Its totient is φ = 10148412.

The previous prime is 30445241. The next prime is 30445253. The reversal of 30445242 is 24254403.

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

30445242 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (30445241) 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, 2537098 + ... + 2537109.

It is an arithmetic number, because the mean of its divisors is an integer number (7611312).

Almost surely, 2^30445242 is an apocalyptic number.

30445242 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.

30445242 is a wasteful number, since it uses less digits than its factorization.

30445242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5074212.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 30445242 is about 5517.7207250821. The cubic root of 30445242 is about 312.2528973537.

Adding to 30445242 its reverse (24254403), we get a palindrome (54699645).

The spelling of 30445242 in words is "thirty million, four hundred forty-five thousand, two hundred forty-two".