30040234 has 12 divisors (see below), whose sum is σ = 52417314. Its totient is φ = 12874344.

The previous prime is 30040229. The next prime is 30040237. The reversal of 30040234 is 43204003.

It can be written as a sum of positive squares in only one way, i.e., 21022225 + 9018009 = 4585^2 + 3003^2 .

It is not an unprimeable number, because it can be changed into a prime (30040237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 153169 + ... + 153364.

Almost surely, 2^30040234 is an apocalyptic number.

30040234 is a deficient number, since it is larger than the sum of its proper divisors (22377080).

30040234 is a wasteful number, since it uses less digits than its factorization.

30040234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306549 (or 306542 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 30040234 is about 5480.8971893295. The cubic root of 30040234 is about 310.8620956469.

Adding to 30040234 its reverse (43204003), we get a palindrome (73244237).

The spelling of 30040234 in words is "thirty million, forty thousand, two hundred thirty-four".