2026780 has 48 divisors (see below), whose sum is σ = 5031936. Its totient is φ = 671040.

The previous prime is 2026769. The next prime is 2026789. The reversal of 2026780 is 876202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2026789) 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, 4107 + ... + 4573.

It is an arithmetic number, because the mean of its divisors is an integer number (104832).

2^2026780 is an apocalyptic number.

2026780 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 2026780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2515968).

2026780 is an abundant number, since it is smaller than the sum of its proper divisors (3005156).

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

2026780 is a wasteful number, since it uses less digits than its factorization.

2026780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 2026780 is about 1423.6502379447. The cubic root of 2026780 is about 126.5519583254.

The spelling of 2026780 in words is "two million, twenty-six thousand, seven hundred eighty".