30809834 has 16 divisors (see below), whose sum is σ = 52608960. Its totient is φ = 13395360.

The previous prime is 30809827. The next prime is 30809839. The reversal of 30809834 is 43890803.

It is a super-2 number, since 2×30809834² = 1898491742215112, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30809794 and 30809803.

It is not an unprimeable number, because it can be changed into a prime (30809839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29939 + ... + 30950.

It is an arithmetic number, because the mean of its divisors is an integer number (3288060).

Almost surely, 2^30809834 is an apocalyptic number.

30809834 is a deficient number, since it is larger than the sum of its proper divisors (21799126).

30809834 is a wasteful number, since it uses less digits than its factorization.

30809834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60925.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 30809834 is about 5550.6606813964. The cubic root of 30809834 is about 313.4943991090.

The spelling of 30809834 in words is "thirty million, eight hundred nine thousand, eight hundred thirty-four".