2018780 has 24 divisors (see below), whose sum is σ = 4269552. Its totient is φ = 801792.

The previous prime is 2018773. The next prime is 2018827. The reversal of 2018780 is 878102.

It is a congruent number.

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, 3599 + ... + 4121.

It is an arithmetic number, because the mean of its divisors is an integer number (177898).

2^2018780 is an apocalyptic number.

2018780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2018780 is an abundant number, since it is smaller than the sum of its proper divisors (2250772).

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

2018780 is a wasteful number, since it uses less digits than its factorization.

2018780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725 (or 723 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 2018780 is about 1420.8377810292. The cubic root of 2018780 is about 126.3852323451.

The spelling of 2018780 in words is "two million, eighteen thousand, seven hundred eighty".