30686434 has 8 divisors (see below), whose sum is σ = 47100240. Its totient is φ = 14986356.

The previous prime is 30686419. The next prime is 30686449. The reversal of 30686434 is 43468603.

It is an interprime number because it is at equal distance from previous prime (30686419) and next prime (30686449).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 30686434.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 178324 + ... + 178495.

It is an arithmetic number, because the mean of its divisors is an integer number (5887530).

Almost surely, 2^30686434 is an apocalyptic number.

30686434 is a deficient number, since it is larger than the sum of its proper divisors (16413806).

30686434 is a wasteful number, since it uses less digits than its factorization.

30686434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356864.

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 30686434 is about 5539.5337348914. The cubic root of 30686434 is about 313.0753016265.

The spelling of 30686434 in words is "thirty million, six hundred eighty-six thousand, four hundred thirty-four".