18282842 has 4 divisors (see below), whose sum is σ = 27424266. Its totient is φ = 9141420.

The previous prime is 18282841. The next prime is 18282853. The reversal of 18282842 is 24828281.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11621281 + 6661561 = 3409^2 + 2581^2 .

It is a super-3 number, since 3×18282842³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (18282841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4570709 + ... + 4570712.

Almost surely, 2^18282842 is an apocalyptic number.

18282842 is a deficient number, since it is larger than the sum of its proper divisors (9141424).

18282842 is an equidigital number, since it uses as much as digits as its factorization.

18282842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9141423.

The product of its digits is 16384, while the sum is 35.

The square root of 18282842 is about 4275.8440102511. The cubic root of 18282842 is about 263.4397074203.

The spelling of 18282842 in words is "eighteen million, two hundred eighty-two thousand, eight hundred forty-two".