2765980 has 48 divisors (see below), whose sum is σ = 6935040. Its totient is φ = 906048.

The previous prime is 2765977. The next prime is 2766007. The reversal of 2765980 is 895672.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2791 + ... + 3649.

It is an arithmetic number, because the mean of its divisors is an integer number (144480).

2^2765980 is an apocalyptic number.

2765980 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 2765980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3467520).

2765980 is an abundant number, since it is smaller than the sum of its proper divisors (4169060).

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

2765980 is a wasteful number, since it uses less digits than its factorization.

2765980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898 (or 896 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 2765980 is about 1663.1235672673. The cubic root of 2765980 is about 140.3728158450.

The spelling of 2765980 in words is "two million, seven hundred sixty-five thousand, nine hundred eighty".