2773816440 has 32 divisors (see below), whose sum is σ = 8321449680. Its totient is φ = 739684352.

The previous prime is 2773816379. The next prime is 2773816457. The reversal of 2773816440 is 446183772.

It is a junction number, because it is equal to n+sod(n) for n = 2773816392 and 2773816401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11557449 + ... + 11557688.

Almost surely, 2^2773816440 is an apocalyptic number.

2773816440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2773816440 is an abundant number, since it is smaller than the sum of its proper divisors (5547633240).

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

2773816440 is a wasteful number, since it uses less digits than its factorization.

2773816440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23115151 (or 23115147 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 2773816440 is about 52667.0337118012. The cubic root of 2773816440 is about 1405.0525666009.

The spelling of 2773816440 in words is "two billion, seven hundred seventy-three million, eight hundred sixteen thousand, four hundred forty".