18137834 has 16 divisors (see below), whose sum is σ = 31963680. Its totient is φ = 7610160.

The previous prime is 18137809. The next prime is 18137849. The reversal of 18137834 is 43873181.

It is a junction number, because it is equal to n+sod(n) for n = 18137794 and 18137803.

It is an unprimeable number.

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, 31424 + ... + 31995.

It is an arithmetic number, because the mean of its divisors is an integer number (1997730).

Almost surely, 2^18137834 is an apocalyptic number.

18137834 is a deficient number, since it is larger than the sum of its proper divisors (13825846).

18137834 is a wasteful number, since it uses less digits than its factorization.

18137834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63445.

The product of its digits is 16128, while the sum is 35.

The square root of 18137834 is about 4258.8536016163. The cubic root of 18137834 is about 262.7413785800.

The spelling of 18137834 in words is "eighteen million, one hundred thirty-seven thousand, eight hundred thirty-four".