30912834 has 32 divisors (see below), whose sum is σ = 67239936. Its totient is φ = 9434880.

The previous prime is 30912823. The next prime is 30912839. The reversal of 30912834 is 43821903.

It is not an unprimeable number, because it can be changed into a prime (30912839) 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 15 ways as a sum of consecutive naturals, for example, 322 + ... + 7869.

It is an arithmetic number, because the mean of its divisors is an integer number (2101248).

Almost surely, 2^30912834 is an apocalyptic number.

30912834 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

30912834 is an abundant number, since it is smaller than the sum of its proper divisors (36327102).

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

30912834 is a wasteful number, since it uses less digits than its factorization.

30912834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8250.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 30912834 is about 5559.9311146812. The cubic root of 30912834 is about 313.8433570326.

The spelling of 30912834 in words is "thirty million, nine hundred twelve thousand, eight hundred thirty-four".