18114402 has 8 divisors (see below), whose sum is σ = 36228816. Its totient is φ = 6038132.

The previous prime is 18114361. The next prime is 18114403. The reversal of 18114402 is 20441181.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

18114402 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (18114403) 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 3 ways as a sum of consecutive naturals, for example, 1509528 + ... + 1509539.

It is an arithmetic number, because the mean of its divisors is an integer number (4528602).

Almost surely, 2^18114402 is an apocalyptic number.

18114402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18114402 is a wasteful number, since it uses less digits than its factorization.

18114402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3019072.

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 18114402 is about 4256.1017375058. The cubic root of 18114402 is about 262.6281859192.

Adding to 18114402 its reverse (20441181), we get a palindrome (38555583).

The spelling of 18114402 in words is "eighteen million, one hundred fourteen thousand, four hundred two".