2064840540 has 48 divisors (see below), whose sum is σ = 6607491072. Its totient is φ = 471963456.

The previous prime is 2064840539. The next prime is 2064840581. The reversal of 2064840540 is 450484602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2457724 + ... + 2458563.

It is an arithmetic number, because the mean of its divisors is an integer number (137656064).

Almost surely, 2^2064840540 is an apocalyptic number.

2064840540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2064840540 is an abundant number, since it is smaller than the sum of its proper divisors (4542650532).

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

2064840540 is a wasteful number, since it uses less digits than its factorization.

2064840540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4916306 (or 4916304 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 2064840540 is about 45440.5165023462. The cubic root of 2064840540 is about 1273.3921632191.

The spelling of 2064840540 in words is "two billion, sixty-four million, eight hundred forty thousand, five hundred forty".