30445042 has 8 divisors (see below), whose sum is σ = 46781532. Its totient is φ = 14851200.

The previous prime is 30445033. The next prime is 30445057. The reversal of 30445042 is 24054403.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30261001 + 184041 = 5501^2 + 429^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 185559 + ... + 185722.

Almost surely, 2^30445042 is an apocalyptic number.

30445042 is a deficient number, since it is larger than the sum of its proper divisors (16336490).

30445042 is a wasteful number, since it uses less digits than its factorization.

30445042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371324.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 30445042 is about 5517.7026016269. The cubic root of 30445042 is about 312.2522136047.

Adding to 30445042 its reverse (24054403), we get a palindrome (54499445).

The spelling of 30445042 in words is "thirty million, four hundred forty-five thousand, forty-two".