4155018 has 16 divisors (see below), whose sum is σ = 9497280. Its totient is φ = 1187136.

The previous prime is 4155017. The next prime is 4155029. The reversal of 4155018 is 8105514.

It is not an unprimeable number, because it can be changed into a prime (4155013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49423 + ... + 49506.

It is an arithmetic number, because the mean of its divisors is an integer number (593580).

Almost surely, 2^4155018 is an apocalyptic number.

4155018 is an abundant number, since it is smaller than the sum of its proper divisors (5342262).

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

4155018 is a wasteful number, since it uses less digits than its factorization.

4155018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98941.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 4155018 is about 2038.3861263264. The cubic root of 4155018 is about 160.7648019541.

The spelling of 4155018 in words is "four million, one hundred fifty-five thousand, eighteen".