2654220640 has 48 divisors (see below), whose sum is σ = 6287113728. Its totient is φ = 1058891776.

The previous prime is 2654220587. The next prime is 2654220671. The reversal of 2654220640 is 460224562.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39624 + ... + 82936.

It is an arithmetic number, because the mean of its divisors is an integer number (130981536).

Almost surely, 2^2654220640 is an apocalyptic number.

2654220640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2654220640 is an abundant number, since it is smaller than the sum of its proper divisors (3632893088).

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

2654220640 is a wasteful number, since it uses less digits than its factorization.

2654220640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43711 (or 43703 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 2654220640 is about 51519.1288746229. The cubic root of 2654220640 is about 1384.5617853642.

The spelling of 2654220640 in words is "two billion, six hundred fifty-four million, two hundred twenty thousand, six hundred forty".