18730334 has 16 divisors (see below), whose sum is σ = 32237568. Its totient is φ = 7995192.

The previous prime is 18730331. The next prime is 18730357. The reversal of 18730334 is 43303781.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18730297 and 18730306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18730331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1139 + ... + 6225.

It is an arithmetic number, because the mean of its divisors is an integer number (2014848).

Almost surely, 2^18730334 is an apocalyptic number.

18730334 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18730334 is a deficient number, since it is larger than the sum of its proper divisors (13507234).

18730334 is a wasteful number, since it uses less digits than its factorization.

18730334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5359.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 18730334 is about 4327.8555890880. The cubic root of 18730334 is about 265.5717287220.

The spelling of 18730334 in words is "eighteen million, seven hundred thirty thousand, three hundred thirty-four".