18449682 has 16 divisors (see below), whose sum is σ = 37067520. Its totient is φ = 6121872.

The previous prime is 18449677. The next prime is 18449693. The reversal of 18449682 is 28694481.

It is a super-2 number, since 2×18449682² = 680781531802248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5557 + ... + 8232.

It is an arithmetic number, because the mean of its divisors is an integer number (2316720).

Almost surely, 2^18449682 is an apocalyptic number.

18449682 is an abundant number, since it is smaller than the sum of its proper divisors (18617838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18449682 is a wasteful number, since it uses less digits than its factorization.

18449682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14017.

The product of its digits is 110592, while the sum is 42.

The square root of 18449682 is about 4295.3093020177. The cubic root of 18449682 is about 264.2386214884.

It can be divided in two parts, 18 and 449682, that multiplied together give a triangular number (8094276 = T₄₀₂₃).

The spelling of 18449682 in words is "eighteen million, four hundred forty-nine thousand, six hundred eighty-two".