18373834 has 8 divisors (see below), whose sum is σ = 27682848. Its totient is φ = 9146220.

The previous prime is 18373829. The next prime is 18373891. The reversal of 18373834 is 43837381.

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

It is a junction number, because it is equal to n+sod(n) for n = 18373793 and 18373802.

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 3 ways as a sum of consecutive naturals, for example, 19782 + ... + 20689.

It is an arithmetic number, because the mean of its divisors is an integer number (3460356).

Almost surely, 2^18373834 is an apocalyptic number.

18373834 is a deficient number, since it is larger than the sum of its proper divisors (9309014).

18373834 is a wasteful number, since it uses less digits than its factorization.

18373834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40700.

The product of its digits is 48384, while the sum is 37.

The square root of 18373834 is about 4286.4710427110. The cubic root of 18373834 is about 263.8760226726.

It can be divided in two parts, 1837 and 3834, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 18373834 in words is "eighteen million, three hundred seventy-three thousand, eight hundred thirty-four".