30312834 has 16 divisors (see below), whose sum is σ = 60888672. Its totient is φ = 10060448.

The previous prime is 30312833. The next prime is 30312839. The reversal of 30312834 is 43821303.

It is a super-2 number, since 2×30312834² = 1837735810223112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30312833) 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 7 ways as a sum of consecutive naturals, for example, 9444 + ... + 12239.

It is an arithmetic number, because the mean of its divisors is an integer number (3805542).

Almost surely, 2^30312834 is an apocalyptic number.

30312834 is an abundant number, since it is smaller than the sum of its proper divisors (30575838).

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

30312834 is a wasteful number, since it uses less digits than its factorization.

30312834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21921.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 30312834 is about 5505.7092186202. The cubic root of 30312834 is about 311.7995713051.

The spelling of 30312834 in words is "thirty million, three hundred twelve thousand, eight hundred thirty-four".