2740721228 has 12 divisors (see below), whose sum is σ = 5481442512. Its totient is φ = 1174594800.

The previous prime is 2740721201. The next prime is 2740721231. The reversal of 2740721228 is 8221270472.

2740721228 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48941423 + ... + 48941478.

It is an arithmetic number, because the mean of its divisors is an integer number (456786876).

Almost surely, 2^2740721228 is an apocalyptic number.

2740721228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2740721228 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2740721228 is a wasteful number, since it uses less digits than its factorization.

2740721228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97882912 (or 97882910 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 35.

The square root of 2740721228 is about 52351.8980362699. The cubic root of 2740721228 is about 1399.4421634712.

The spelling of 2740721228 in words is "two billion, seven hundred forty million, seven hundred twenty-one thousand, two hundred twenty-eight".