2887660340 has 24 divisors (see below), whose sum is σ = 6211993032. Its totient is φ = 1126891520.

The previous prime is 2887660333. The next prime is 2887660351. The reversal of 2887660340 is 430667882.

It can be written as a sum of positive squares in 4 ways, for example, as 73994404 + 2813665936 = 8602^2 + 53044^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2887660291 and 2887660300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1759949 + ... + 1761588.

It is an arithmetic number, because the mean of its divisors is an integer number (258833043).

Almost surely, 2^2887660340 is an apocalyptic number.

2887660340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2887660340 is an abundant number, since it is smaller than the sum of its proper divisors (3324332692).

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

2887660340 is a wasteful number, since it uses less digits than its factorization.

2887660340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3521587 (or 3521585 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 2887660340 is about 53736.9550681838. The cubic root of 2887660340 is about 1424.0176407832.

The spelling of 2887660340 in words is "two billion, eight hundred eighty-seven million, six hundred sixty thousand, three hundred forty".