2018040 has 64 divisors (see below), whose sum is σ = 6168960. Its totient is φ = 528000.

The previous prime is 2018021. The next prime is 2018041. The reversal of 2018040 is 408102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2018041) 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 15 ways as a sum of consecutive naturals, for example, 7915 + ... + 8165.

It is an arithmetic number, because the mean of its divisors is an integer number (96390).

2^2018040 is an apocalyptic number.

2018040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2018040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3084480).

2018040 is an abundant number, since it is smaller than the sum of its proper divisors (4150920).

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

2018040 is a wasteful number, since it uses less digits than its factorization.

2018040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2018040 is about 1420.5773474190. The cubic root of 2018040 is about 126.3697879510.

The spelling of 2018040 in words is "two million, eighteen thousand, forty".