2791214228 has 24 divisors (see below), whose sum is σ = 5609140320. Its totient is φ = 1201957920.

The previous prime is 2791214219. The next prime is 2791214233. The reversal of 2791214228 is 8224121972.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 2791214191 and 2791214200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1668551 + ... + 1670222.

It is an arithmetic number, because the mean of its divisors is an integer number (233714180).

Almost surely, 2^2791214228 is an apocalyptic number.

It is an amenable number.

2791214228 is an abundant number, since it is smaller than the sum of its proper divisors (2817926092).

2791214228 is a wasteful number, since it uses less digits than its factorization.

2791214228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3338807 (or 3338805 counting only the distinct ones).

The product of its digits is 32256, while the sum is 38.

The square root of 2791214228 is about 52831.9432540580. The cubic root of 2791214228 is about 1407.9840123066.

The spelling of 2791214228 in words is "two billion, seven hundred ninety-one million, two hundred fourteen thousand, two hundred twenty-eight".