18234842 has 8 divisors (see below), whose sum is σ = 27457056. Its totient is φ = 9082492.

The previous prime is 18234817. The next prime is 18234847. The reversal of 18234842 is 24843281.

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 = 18234799 and 18234808.

It is not an unprimeable number, because it can be changed into a prime (18234847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16808 + ... + 17859.

It is an arithmetic number, because the mean of its divisors is an integer number (3432132).

Almost surely, 2^18234842 is an apocalyptic number.

18234842 is a deficient number, since it is larger than the sum of its proper divisors (9222214).

18234842 is a wasteful number, since it uses less digits than its factorization.

18234842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34932.

The product of its digits is 12288, while the sum is 32.

The square root of 18234842 is about 4270.2273944136. The cubic root of 18234842 is about 263.2089594084.

The spelling of 18234842 in words is "eighteen million, two hundred thirty-four thousand, eight hundred forty-two".