18366834 has 32 divisors (see below), whose sum is σ = 40590720. Its totient is φ = 5510912.

The previous prime is 18366833. The next prime is 18366839. The reversal of 18366834 is 43866381.

It is a junction number, because it is equal to n+sod(n) for n = 18366792 and 18366801.

It is not an unprimeable number, because it can be changed into a prime (18366833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1569 + ... + 6260.

It is an arithmetic number, because the mean of its divisors is an integer number (1268460).

Almost surely, 2^18366834 is an apocalyptic number.

18366834 is an abundant number, since it is smaller than the sum of its proper divisors (22223886).

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

18366834 is a wasteful number, since it uses less digits than its factorization.

18366834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7874.

The product of its digits is 82944, while the sum is 39.

The square root of 18366834 is about 4285.6544424393. The cubic root of 18366834 is about 263.8425082234.

The spelling of 18366834 in words is "eighteen million, three hundred sixty-six thousand, eight hundred thirty-four".