18439082 has 16 divisors (see below), whose sum is σ = 29198400. Its totient is φ = 8709120.

The previous prime is 18439081. The next prime is 18439097. The reversal of 18439082 is 28093481.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18439081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23594 + ... + 24362.

It is an arithmetic number, because the mean of its divisors is an integer number (1824900).

Almost surely, 2^18439082 is an apocalyptic number.

18439082 is a deficient number, since it is larger than the sum of its proper divisors (10759318).

18439082 is a wasteful number, since it uses less digits than its factorization.

18439082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 18439082 is about 4294.0752205801. The cubic root of 18439082 is about 264.1880069580.

The spelling of 18439082 in words is "eighteen million, four hundred thirty-nine thousand, eighty-two".