18078082 has 32 divisors (see below), whose sum is σ = 31694400. Its totient is φ = 7646400.

The previous prime is 18078077. The next prime is 18078083. The reversal of 18078082 is 28087081.

It is not an unprimeable number, because it can be changed into a prime (18078083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25144 + ... + 25852.

It is an arithmetic number, because the mean of its divisors is an integer number (990450).

Almost surely, 2^18078082 is an apocalyptic number.

18078082 is a deficient number, since it is larger than the sum of its proper divisors (13616318).

18078082 is a wasteful number, since it uses less digits than its factorization.

18078082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802.

The product of its (nonzero) digits is 7168, while the sum is 34.

The square root of 18078082 is about 4251.8327812839. The cubic root of 18078082 is about 262.4525422898.

It can be divided in two parts, 1807 and 8082, that added together give a palindrome (9889).

The spelling of 18078082 in words is "eighteen million, seventy-eight thousand, eighty-two".