18408075 has 36 divisors (see below), whose sum is σ = 35410680. Its totient is φ = 8413440.

The previous prime is 18408053. The next prime is 18408077. The reversal of 18408075 is 57080481.

It is a happy number.

It is not a de Polignac number, because 18408075 - 2⁷ = 18407947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18408077) 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 35 ways as a sum of consecutive naturals, for example, 1171 + ... + 6179.

It is an arithmetic number, because the mean of its divisors is an integer number (983630).

Almost surely, 2^18408075 is an apocalyptic number.

18408075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18408075 is a deficient number, since it is larger than the sum of its proper divisors (17002605).

18408075 is a wasteful number, since it uses less digits than its factorization.

18408075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5036 (or 5024 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 18408075 is about 4290.4632617003. The cubic root of 18408075 is about 264.0398384553.

The spelling of 18408075 in words is "eighteen million, four hundred eight thousand, seventy-five".