18618482 has 4 divisors (see below), whose sum is σ = 27927726. Its totient is φ = 9309240.

The previous prime is 18618463. The next prime is 18618503. The reversal of 18618482 is 28481681.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28481681 = 17 ⋅1675393.

It can be written as a sum of positive squares in only one way, i.e., 16982641 + 1635841 = 4121^2 + 1279^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4654619 + ... + 4654622.

Almost surely, 2^18618482 is an apocalyptic number.

18618482 is a deficient number, since it is larger than the sum of its proper divisors (9309244).

18618482 is an equidigital number, since it uses as much as digits as its factorization.

18618482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9309243.

The product of its digits is 24576, while the sum is 38.

The square root of 18618482 is about 4314.9139041237. The cubic root of 18618482 is about 265.0420343906.

The spelling of 18618482 in words is "eighteen million, six hundred eighteen thousand, four hundred eighty-two".