18834242 has 8 divisors (see below), whose sum is σ = 32287296. Its totient is φ = 8071812.

The previous prime is 18834223. The next prime is 18834331. The reversal of 18834242 is 24243881.

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 = 18834199 and 18834208.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672638 + ... + 672665.

It is an arithmetic number, because the mean of its divisors is an integer number (4035912).

Almost surely, 2^18834242 is an apocalyptic number.

18834242 is a deficient number, since it is larger than the sum of its proper divisors (13453054).

18834242 is a wasteful number, since it uses less digits than its factorization.

18834242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345312.

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

The square root of 18834242 is about 4339.8435455671. The cubic root of 18834242 is about 266.0619167302.

The spelling of 18834242 in words is "eighteen million, eight hundred thirty-four thousand, two hundred forty-two".