2773940 has 48 divisors (see below), whose sum is σ = 6435072. Its totient is φ = 998016.

The previous prime is 2773931. The next prime is 2773949. The reversal of 2773940 is 493772.

It is a happy number.

2773940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2773931) and next prime (2773949).

It is a junction number, because it is equal to n+sod(n) for n = 2773897 and 2773906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2773949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12107 + ... + 12333.

It is an arithmetic number, because the mean of its divisors is an integer number (134064).

2^2773940 is an apocalyptic number.

2773940 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 2773940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3217536).

2773940 is an abundant number, since it is smaller than the sum of its proper divisors (3661132).

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

2773940 is a wasteful number, since it uses less digits than its factorization.

2773940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 2773940 is about 1665.5149353879. The cubic root of 2773940 is about 140.5073429038.

The spelling of 2773940 in words is "two million, seven hundred seventy-three thousand, nine hundred forty".