30434247918 has 48 divisors (see below), whose sum is σ = 69427397520. Its totient is φ = 9608606208.

The previous prime is 30434247827. The next prime is 30434247919. The reversal of 30434247918 is 81974243403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30434247919) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 2139646 + ... + 2153822.

It is an arithmetic number, because the mean of its divisors is an integer number (1446404115).

Almost surely, 2^30434247918 is an apocalyptic number.

30434247918 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

30434247918 is an abundant number, since it is smaller than the sum of its proper divisors (38993149602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30434247918 is a wasteful number, since it uses less digits than its factorization.

30434247918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20481 (or 20478 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 30434247918 in words is "thirty billion, four hundred thirty-four million, two hundred forty-seven thousand, nine hundred eighteen".