30442430 has 16 divisors (see below), whose sum is σ = 55127520. Its totient is φ = 12103392.

The previous prime is 30442429. The next prime is 30442439. The reversal of 30442430 is 3424403.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30442439) 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 7 ways as a sum of consecutive naturals, for example, 7445 + ... + 10784.

It is an arithmetic number, because the mean of its divisors is an integer number (3445470).

Almost surely, 2^30442430 is an apocalyptic number.

30442430 is a deficient number, since it is larger than the sum of its proper divisors (24685090).

30442430 is a wasteful number, since it uses less digits than its factorization.

30442430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18403.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 30442430 is about 5517.4659038367. The cubic root of 30442430 is about 312.2432835671.

Adding to 30442430 its reverse (3424403), we get a palindrome (33866833).

The spelling of 30442430 in words is "thirty million, four hundred forty-two thousand, four hundred thirty".