18141996 has 24 divisors (see below), whose sum is σ = 42421680. Its totient is φ = 6034432.

The previous prime is 18141989. The next prime is 18141997. The reversal of 18141996 is 69914181.

It is a super-3 number, since 3×18141996³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (18141997) 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 7 ways as a sum of consecutive naturals, for example, 5500 + ... + 8156.

It is an arithmetic number, because the mean of its divisors is an integer number (1767570).

Almost surely, 2^18141996 is an apocalyptic number.

It is an amenable number.

18141996 is an abundant number, since it is smaller than the sum of its proper divisors (24279684).

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

18141996 is a wasteful number, since it uses less digits than its factorization.

18141996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3233 (or 3231 counting only the distinct ones).

The product of its digits is 15552, while the sum is 39.

The square root of 18141996 is about 4259.3422027351. The cubic root of 18141996 is about 262.7614737025.

The spelling of 18141996 in words is "eighteen million, one hundred forty-one thousand, nine hundred ninety-six".