2708985840 has 320 divisors, whose sum is σ = 9599385600. Its totient is φ = 625996800.

The previous prime is 2708985823. The next prime is 2708985883. The reversal of 2708985840 is 485898072.

It is a happy number.

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 63 ways as a sum of consecutive naturals, for example, 6465151 + ... + 6465569.

It is an arithmetic number, because the mean of its divisors is an integer number (29998080).

Almost surely, 2^2708985840 is an apocalyptic number.

2708985840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2708985840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4799692800).

2708985840 is an abundant number, since it is smaller than the sum of its proper divisors (6890399760).

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

2708985840 is a wasteful number, since it uses less digits than its factorization.

2708985840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 550 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 51.

The square root of 2708985840 is about 52047.9186903761. The cubic root of 2708985840 is about 1394.0197015660.

The spelling of 2708985840 in words is "two billion, seven hundred eight million, nine hundred eighty-five thousand, eight hundred forty".