2721022240 has 48 divisors (see below), whose sum is σ = 6458961600. Its totient is φ = 1083237120.

The previous prime is 2721022229. The next prime is 2721022267. The reversal of 2721022240 is 422201272.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6540 + ... + 74059.

It is an arithmetic number, because the mean of its divisors is an integer number (134561700).

Almost surely, 2^2721022240 is an apocalyptic number.

2721022240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2721022240 is an abundant number, since it is smaller than the sum of its proper divisors (3737939360).

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

2721022240 is a wasteful number, since it uses less digits than its factorization.

2721022240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80825 (or 80817 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 2721022240 is about 52163.4185996278. The cubic root of 2721022240 is about 1396.0812589706.

The spelling of 2721022240 in words is "two billion, seven hundred twenty-one million, twenty-two thousand, two hundred forty".