2773623840 has 192 divisors, whose sum is σ = 9628730496. Its totient is φ = 666796032.

The previous prime is 2773623833. The next prime is 2773623841. The reversal of 2773623840 is 483263772.

It is a junction number, because it is equal to n+sod(n) for n = 2773623792 and 2773623801.

It is not an unprimeable number, because it can be changed into a prime (2773623841) 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, 263152 + ... + 273488.

It is an arithmetic number, because the mean of its divisors is an integer number (50149638).

Almost surely, 2^2773623840 is an apocalyptic number.

2773623840 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 2773623840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4814365248).

2773623840 is an abundant number, since it is smaller than the sum of its proper divisors (6855106656).

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

2773623840 is a wasteful number, since it uses less digits than its factorization.

2773623840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10411 (or 10403 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 42.

The square root of 2773623840 is about 52665.2052117905. The cubic root of 2773623840 is about 1405.0200458971.

The spelling of 2773623840 in words is "two billion, seven hundred seventy-three million, six hundred twenty-three thousand, eight hundred forty".