2772655040 has 28 divisors (see below), whose sum is σ = 6602385576. Its totient is φ = 1109061888.

The previous prime is 2772655033. The next prime is 2772655063. The reversal of 2772655040 is 405562772.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2772654985 and 2772655003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4331954 + ... + 4332593.

Almost surely, 2^2772655040 is an apocalyptic number.

2772655040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2772655040 is an abundant number, since it is smaller than the sum of its proper divisors (3829730536).

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

2772655040 is an equidigital number, since it uses as much as digits as its factorization.

2772655040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8664564 (or 8664554 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 38.

The square root of 2772655040 is about 52656.0066848978. The cubic root of 2772655040 is about 1404.8564402062.

The spelling of 2772655040 in words is "two billion, seven hundred seventy-two million, six hundred fifty-five thousand, forty".