18142002 has 32 divisors (see below), whose sum is σ = 40622400. Its totient is φ = 6001344.

The previous prime is 18141997. The next prime is 18142021. The reversal of 18142002 is 20024181.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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, 6298 + ... + 8714.

It is an arithmetic number, because the mean of its divisors is an integer number (1269450).

Almost surely, 2^18142002 is an apocalyptic number.

18142002 is an abundant number, since it is smaller than the sum of its proper divisors (22480398).

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

18142002 is a wasteful number, since it uses less digits than its factorization.

18142002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2567 (or 2561 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 18142002 is about 4259.3429070691. The cubic root of 18142002 is about 262.7615026697.

Adding to 18142002 its reverse (20024181), we get a palindrome (38166183).

The spelling of 18142002 in words is "eighteen million, one hundred forty-two thousand, two".