30040046 has 4 divisors (see below), whose sum is σ = 45060072. Its totient is φ = 15020022.

The previous prime is 30040013. The next prime is 30040057. The reversal of 30040046 is 64004003.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7510010 + ... + 7510013.

It is an arithmetic number, because the mean of its divisors is an integer number (11265018).

Almost surely, 2^30040046 is an apocalyptic number.

30040046 is a deficient number, since it is larger than the sum of its proper divisors (15020026).

30040046 is a wasteful number, since it uses less digits than its factorization.

30040046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15020025.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 30040046 is about 5480.8800388259. The cubic root of 30040046 is about 310.8614471589.

Adding to 30040046 its reverse (64004003), we get a palindrome (94044049).

The spelling of 30040046 in words is "thirty million, forty thousand, forty-six", and thus it is an eban number.