2720052640 has 48 divisors (see below), whose sum is σ = 6436839528. Its totient is φ = 1086206976.

The previous prime is 2720052619. The next prime is 2720052661. The reversal of 2720052640 is 462500272.

It is an interprime number because it is at equal distance from previous prime (2720052619) and next prime (2720052661).

It can be written as a sum of positive squares in 4 ways, for example, as 831976336 + 1888076304 = 28844^2 + 43452^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2720052599 and 2720052608.

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, 84214 + ... + 111946.

Almost surely, 2^2720052640 is an apocalyptic number.

2720052640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2720052640 is an abundant number, since it is smaller than the sum of its proper divisors (3716786888).

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

2720052640 is a wasteful number, since it uses less digits than its factorization.

2720052640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28361 (or 28353 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 2720052640 is about 52154.1239021422. The cubic root of 2720052640 is about 1395.9154142886.

The spelling of 2720052640 in words is "two billion, seven hundred twenty million, fifty-two thousand, six hundred forty".