18483257 has 8 divisors (see below), whose sum is σ = 20952960. Its totient is φ = 16163280.

The previous prime is 18483229. The next prime is 18483263. The reversal of 18483257 is 75238481.

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 18483257 - 2⁸ = 18483001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18483257.

It is not an unprimeable number, because it can be changed into a prime (18483557) 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, 37169 + ... + 37662.

It is an arithmetic number, because the mean of its divisors is an integer number (2619120).

Almost surely, 2^18483257 is an apocalyptic number.

It is an amenable number.

18483257 is a deficient number, since it is larger than the sum of its proper divisors (2469703).

18483257 is a wasteful number, since it uses less digits than its factorization.

18483257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74863.

The product of its digits is 53760, while the sum is 38.

The square root of 18483257 is about 4299.2158587352. The cubic root of 18483257 is about 264.3988127854.

The spelling of 18483257 in words is "eighteen million, four hundred eighty-three thousand, two hundred fifty-seven".