30434505 has 48 divisors (see below), whose sum is σ = 53592192. Its totient is φ = 14694400.

The previous prime is 30434489. The next prime is 30434507. The reversal of 30434505 is 50543403.

It is a happy number.

It is not a de Polignac number, because 30434505 - 2⁴ = 30434489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30434507) 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 47 ways as a sum of consecutive naturals, for example, 428620 + ... + 428690.

It is an arithmetic number, because the mean of its divisors is an integer number (1116504).

Almost surely, 2^30434505 is an apocalyptic number.

It is an amenable number.

30434505 is a deficient number, since it is larger than the sum of its proper divisors (23157687).

30434505 is a wasteful number, since it uses less digits than its factorization.

30434505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 30434505 is about 5516.7476831916. The cubic root of 30434505 is about 312.2161860502.

Adding to 30434505 its reverse (50543403), we get a palindrome (80977908).

The spelling of 30434505 in words is "thirty million, four hundred thirty-four thousand, five hundred five".