4140018 has 16 divisors (see below), whose sum is σ = 9200160. Its totient is φ = 1379988.

The previous prime is 4140001. The next prime is 4140029. The reversal of 4140018 is 8100414.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38280 + ... + 38387.

It is an arithmetic number, because the mean of its divisors is an integer number (575010).

Almost surely, 2^4140018 is an apocalyptic number.

4140018 is an abundant number, since it is smaller than the sum of its proper divisors (5060142).

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

4140018 is a wasteful number, since it uses less digits than its factorization.

4140018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76678 (or 76672 counting only the distinct ones).

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

The square root of 4140018 is about 2034.7034181915. The cubic root of 4140018 is about 160.5711100742.

The spelling of 4140018 in words is "four million, one hundred forty thousand, eighteen".