18693245 has 8 divisors (see below), whose sum is σ = 23612640. Its totient is φ = 14167440.

The previous prime is 18693209. The next prime is 18693247. The reversal of 18693245 is 54239681.

It is a happy number.

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

It is not a de Polignac number, because 18693245 - 2¹² = 18689149 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18693199 and 18693208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18693247) 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, 98291 + ... + 98480.

It is an arithmetic number, because the mean of its divisors is an integer number (2951580).

Almost surely, 2^18693245 is an apocalyptic number.

It is an amenable number.

18693245 is a deficient number, since it is larger than the sum of its proper divisors (4919395).

18693245 is a wasteful number, since it uses less digits than its factorization.

18693245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196795.

The product of its digits is 51840, while the sum is 38.

The square root of 18693245 is about 4323.5685492426. The cubic root of 18693245 is about 265.3963216633.

The spelling of 18693245 in words is "eighteen million, six hundred ninety-three thousand, two hundred forty-five".