2656828220 has 24 divisors (see below), whose sum is σ = 5698050624. Its totient is φ = 1040119616.

The previous prime is 2656828201. The next prime is 2656828231. The reversal of 2656828220 is 228286562.

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, 1412267 + ... + 1414146.

It is an arithmetic number, because the mean of its divisors is an integer number (237418776).

Almost surely, 2^2656828220 is an apocalyptic number.

2656828220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2656828220 is an abundant number, since it is smaller than the sum of its proper divisors (3041222404).

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

2656828220 is a wasteful number, since it uses less digits than its factorization.

2656828220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2826469 (or 2826467 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

The square root of 2656828220 is about 51544.4295729422. The cubic root of 2656828220 is about 1385.0150476020.

The spelling of 2656828220 in words is "two billion, six hundred fifty-six million, eight hundred twenty-eight thousand, two hundred twenty".