18071934 has 8 divisors (see below), whose sum is σ = 36143880. Its totient is φ = 6023976.

The previous prime is 18071929. The next prime is 18071957. The reversal of 18071934 is 43917081.

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

18071934 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18071895 and 18071904.

It is a congruent number.

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, 1505989 + ... + 1506000.

It is an arithmetic number, because the mean of its divisors is an integer number (4517985).

Almost surely, 2^18071934 is an apocalyptic number.

18071934 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18071934 is a wasteful number, since it uses less digits than its factorization.

18071934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3011994.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 18071934 is about 4251.1097374686. The cubic root of 18071934 is about 262.4227872679.

It can be divided in two parts, 1807 and 1934, that added together give a triangular number (3741 = T₈₆).

The spelling of 18071934 in words is "eighteen million, seventy-one thousand, nine hundred thirty-four".