2720705228 has 24 divisors (see below), whose sum is σ = 5306641200. Its totient is φ = 1212945408.

The previous prime is 2720705191. The next prime is 2720705231. The reversal of 2720705228 is 8225070272.

It is a happy 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, 1051613 + ... + 1054196.

It is an arithmetic number, because the mean of its divisors is an integer number (221110050).

Almost surely, 2^2720705228 is an apocalyptic number.

It is an amenable number.

2720705228 is a deficient number, since it is larger than the sum of its proper divisors (2585935972).

2720705228 is a wasteful number, since it uses less digits than its factorization.

2720705228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105849 (or 2105847 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 2720705228 is about 52160.3798682487. The cubic root of 2720705228 is about 1396.0270401683.

The spelling of 2720705228 in words is "two billion, seven hundred twenty million, seven hundred five thousand, two hundred twenty-eight".