2102167840 has 48 divisors (see below), whose sum is σ = 4972689792. Its totient is φ = 839797504.

The previous prime is 2102167819. The next prime is 2102167853. The reversal of 2102167840 is 487612012.

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, 124377 + ... + 140263.

It is an arithmetic number, because the mean of its divisors is an integer number (103597704).

Almost surely, 2^2102167840 is an apocalyptic number.

2102167840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102167840 is an abundant number, since it is smaller than the sum of its proper divisors (2870521952).

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

2102167840 is a wasteful number, since it uses less digits than its factorization.

2102167840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16729 (or 16721 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 2102167840 is about 45849.4039219705. The cubic root of 2102167840 is about 1281.0196627696.

Adding to 2102167840 its reverse (487612012), we get a palindrome (2589779852).

The spelling of 2102167840 in words is "two billion, one hundred two million, one hundred sixty-seven thousand, eight hundred forty".