18234705 has 8 divisors (see below), whose sum is σ = 29175552. Its totient is φ = 9725168.

The previous prime is 18234691. The next prime is 18234721. The reversal of 18234705 is 50743281.

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

It is a cyclic number.

It is not a de Polignac number, because 18234705 - 2¹¹ = 18232657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 607809 + ... + 607838.

It is an arithmetic number, because the mean of its divisors is an integer number (3646944).

Almost surely, 2^18234705 is an apocalyptic number.

18234705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18234705 is a deficient number, since it is larger than the sum of its proper divisors (10940847).

18234705 is a wasteful number, since it uses less digits than its factorization.

18234705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215655.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 18234705 is about 4270.2113530831. The cubic root of 18234705 is about 263.2083002359.

Adding to 18234705 its reverse (50743281), we get a palindrome (68977986).

The spelling of 18234705 in words is "eighteen million, two hundred thirty-four thousand, seven hundred five".