2018940 has 192 divisors, whose sum is σ = 7741440. Its totient is φ = 380160.

The previous prime is 2018927. The next prime is 2018953. The reversal of 2018940 is 498102.

It is an interprime number because it is at equal distance from previous prime (2018927) and next prime (2018953).

It is a super-2 number, since 2×2018940² = 8152237447200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2018940.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 87769 + ... + 87791.

It is an arithmetic number, because the mean of its divisors is an integer number (40320).

2^2018940 is an apocalyptic number.

2018940 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 2018940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3870720).

2018940 is an abundant number, since it is smaller than the sum of its proper divisors (5722500).

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

2018940 is a wasteful number, since it uses less digits than its factorization.

2018940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 2018940 is about 1420.8940847227. The cubic root of 2018940 is about 126.3885711773.

The spelling of 2018940 in words is "two million, eighteen thousand, nine hundred forty".