2108902540 has 24 divisors (see below), whose sum is σ = 4447235520. Its totient is φ = 840029568.

The previous prime is 2108902531. The next prime is 2108902541. The reversal of 2108902540 is 452098012.

It is not an unprimeable number, because it can be changed into a prime (2108902541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215817 + ... + 225376.

It is an arithmetic number, because the mean of its divisors is an integer number (185301480).

Almost surely, 2^2108902540 is an apocalyptic number.

2108902540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2108902540 is an abundant number, since it is smaller than the sum of its proper divisors (2338332980).

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

2108902540 is a wasteful number, since it uses less digits than its factorization.

2108902540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441441 (or 441439 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 2108902540 is about 45922.7888961461. The cubic root of 2108902540 is about 1282.3862023114.

The spelling of 2108902540 in words is "two billion, one hundred eight million, nine hundred two thousand, five hundred forty".