108871640 has 32 divisors (see below), whose sum is σ = 245274480. Its totient is φ = 43492992.

The previous prime is 108871601. The next prime is 108871661. The reversal of 108871640 is 46178801.

It is a self number, because there is not a number n which added to its sum of digits gives 108871640.

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, 46334 + ... + 48626.

Almost surely, 2^108871640 is an apocalyptic number.

108871640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108871640 is an abundant number, since it is smaller than the sum of its proper divisors (136402840).

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

108871640 is a wasteful number, since it uses less digits than its factorization.

108871640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3491 (or 3487 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 108871640 is about 10434.1573689493. The cubic root of 108871640 is about 477.4980345853.

The spelling of 108871640 in words is "one hundred eight million, eight hundred seventy-one thousand, six hundred forty".