2771078040 has 80 divisors (see below), whose sum is σ = 9313912080. Its totient is φ = 738953280.

The previous prime is 2771077999. The next prime is 2771078041. The reversal of 2771078040 is 408701772.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2771077986 and 2771078004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2771078041) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 424396 + ... + 430875.

It is an arithmetic number, because the mean of its divisors is an integer number (116423901).

Almost surely, 2^2771078040 is an apocalyptic number.

2771078040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2771078040 is an abundant number, since it is smaller than the sum of its proper divisors (6542834040).

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

2771078040 is a wasteful number, since it uses less digits than its factorization.

2771078040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855294 (or 855281 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 36.

The square root of 2771078040 is about 52641.0300051205. The cubic root of 2771078040 is about 1404.5900434692.

The spelling of 2771078040 in words is "two billion, seven hundred seventy-one million, seventy-eight thousand, forty".