2770809840 has 60 divisors (see below), whose sum is σ = 9305305464. Its totient is φ = 738882432.

The previous prime is 2770809823. The next prime is 2770809841. The reversal of 2770809840 is 489080772.

2770809840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2770809841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1923454 + ... + 1924893.

Almost surely, 2^2770809840 is an apocalyptic number.

2770809840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2770809840 is an abundant number, since it is smaller than the sum of its proper divisors (6534495624).

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

2770809840 is a wasteful number, since it uses less digits than its factorization.

2770809840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3848366 (or 3848357 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 2770809840 is about 52638.4825009232. The cubic root of 2770809840 is about 1404.5447273866.

The spelling of 2770809840 in words is "two billion, seven hundred seventy million, eight hundred nine thousand, eight hundred forty".