2773680 has 160 divisors (see below), whose sum is σ = 10665984. Its totient is φ = 580608.

The previous prime is 2773679. The next prime is 2773681. The reversal of 2773680 is 863772.

2773680 = T₂₀₀ + T₂₀₁ + ... + T₂₉₀.

It is an interprime number because it is at equal distance from previous prime (2773679) and next prime (2773681).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2773681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21777 + ... + 21903.

2^2773680 is an apocalyptic number.

2773680 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 2773680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5332992).

2773680 is an abundant number, since it is smaller than the sum of its proper divisors (7892304).

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

2773680 is a wasteful number, since it uses less digits than its factorization.

2773680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 2773680 is about 1665.4368796205. The cubic root of 2773680 is about 140.5029528725.

The spelling of 2773680 in words is "two million, seven hundred seventy-three thousand, six hundred eighty".