2777264240 has 20 divisors (see below), whose sum is σ = 6457139544. Its totient is φ = 1110905664.

The previous prime is 2777264233. The next prime is 2777264251. The reversal of 2777264240 is 424627772.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17357822 + ... + 17357981.

Almost surely, 2^2777264240 is an apocalyptic number.

2777264240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2777264240 is an abundant number, since it is smaller than the sum of its proper divisors (3679875304).

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

2777264240 is a wasteful number, since it uses less digits than its factorization.

2777264240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34715816 (or 34715810 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 41.

The square root of 2777264240 is about 52699.7555971562. The cubic root of 2777264240 is about 1405.6344765900.

The spelling of 2777264240 in words is "two billion, seven hundred seventy-seven million, two hundred sixty-four thousand, two hundred forty".