2774728248 has 32 divisors (see below), whose sum is σ = 7031850000. Its totient is φ = 912238848.

The previous prime is 2774728247. The next prime is 2774728273. The reversal of 2774728248 is 8428274772.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2774728248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2774728247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 790123 + ... + 793626.

Almost surely, 2^2774728248 is an apocalyptic number.

It is an amenable number.

2774728248 is an abundant number, since it is smaller than the sum of its proper divisors (4257121752).

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

2774728248 is a wasteful number, since it uses less digits than its factorization.

2774728248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583831 (or 1583827 counting only the distinct ones).

The product of its digits is 2809856, while the sum is 51.

The square root of 2774728248 is about 52675.6893452758. The cubic root of 2774728248 is about 1405.2065058690.

The spelling of 2774728248 in words is "two billion, seven hundred seventy-four million, seven hundred twenty-eight thousand, two hundred forty-eight".