2277772740 has 72 divisors (see below), whose sum is σ = 7132140288. Its totient is φ = 587810880.

The previous prime is 2277772733. The next prime is 2277772769. The reversal of 2277772740 is 472777722.

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

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 23 ways as a sum of consecutive naturals, for example, 198522 + ... + 209681.

It is an arithmetic number, because the mean of its divisors is an integer number (99057504).

Almost surely, 2^2277772740 is an apocalyptic number.

2277772740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2277772740 is an abundant number, since it is smaller than the sum of its proper divisors (4854367548).

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

2277772740 is a wasteful number, since it uses less digits than its factorization.

2277772740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408249 (or 408244 counting only the distinct ones).

The product of its (nonzero) digits is 537824, while the sum is 45.

The square root of 2277772740 is about 47726.0174328426. The cubic root of 2277772740 is about 1315.7401588159.

The spelling of 2277772740 in words is "two billion, two hundred seventy-seven million, seven hundred seventy-two thousand, seven hundred forty".