30734418 has 64 divisors (see below), whose sum is σ = 73084032. Its totient is φ = 8494080.

The previous prime is 30734413. The next prime is 30734437. The reversal of 30734418 is 81443703.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30734411) 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 31 ways as a sum of consecutive naturals, for example, 96796 + ... + 97112.

It is an arithmetic number, because the mean of its divisors is an integer number (1141938).

Almost surely, 2^30734418 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30734418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36542016).

30734418 is an abundant number, since it is smaller than the sum of its proper divisors (42349614).

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

30734418 is a wasteful number, since it uses less digits than its factorization.

30734418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 30734418 is about 5543.8630935477. The cubic root of 30734418 is about 313.2384006455.

The spelling of 30734418 in words is "thirty million, seven hundred thirty-four thousand, four hundred eighteen".