4131018 has 48 divisors (see below), whose sum is σ = 9659520. Its totient is φ = 1271808.

The previous prime is 4130977. The next prime is 4131031. The reversal of 4131018 is 8101314.

4131018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 23 ways as a sum of consecutive naturals, for example, 15946 + ... + 16202.

It is an arithmetic number, because the mean of its divisors is an integer number (201240).

Almost surely, 2^4131018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4131018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4829760).

4131018 is an abundant number, since it is smaller than the sum of its proper divisors (5528502).

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

4131018 is a wasteful number, since it uses less digits than its factorization.

4131018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 4131018 is about 2032.4905903841. The cubic root of 4131018 is about 160.4546702861.

It can be divided in two parts, 41310 and 18, that added together give a triangular number (41328 = T₂₈₇).

The spelling of 4131018 in words is "four million, one hundred thirty-one thousand, eighteen".