2708762640 has 160 divisors (see below), whose sum is σ = 8870670336. Its totient is φ = 682698240.

The previous prime is 2708762627. The next prime is 2708762657. The reversal of 2708762640 is 462678072.

It is a junction number, because it is equal to n+sod(n) for n = 2708762592 and 2708762601.

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 31 ways as a sum of consecutive naturals, for example, 315687 + ... + 324153.

Almost surely, 2^2708762640 is an apocalyptic number.

2708762640 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 2708762640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4435335168).

2708762640 is an abundant number, since it is smaller than the sum of its proper divisors (6161907696).

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

2708762640 is a wasteful number, since it uses less digits than its factorization.

2708762640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8557 (or 8551 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 2708762640 is about 52045.7744682505. The cubic root of 2708762640 is about 1393.9814149449.

The spelling of 2708762640 in words is "two billion, seven hundred eight million, seven hundred sixty-two thousand, six hundred forty".