108177640 has 64 divisors (see below), whose sum is σ = 263203200. Its totient is φ = 39875328.

The previous prime is 108177593. The next prime is 108177649. The reversal of 108177640 is 46771801.

It is a junction number, because it is equal to n+sod(n) for n = 108177596 and 108177605.

It is not an unprimeable number, because it can be changed into a prime (108177649) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 26197 + ... + 30043.

It is an arithmetic number, because the mean of its divisors is an integer number (4112550).

Almost surely, 2^108177640 is an apocalyptic number.

108177640 is a gapful number since it is divisible by the number (10) 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 108177640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131601600).

108177640 is an abundant number, since it is smaller than the sum of its proper divisors (155025560).

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

108177640 is a wasteful number, since it uses less digits than its factorization.

108177640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3914 (or 3910 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 108177640 is about 10400.8480423473. The cubic root of 108177640 is about 476.4812706452.

The spelling of 108177640 in words is "one hundred eight million, one hundred seventy-seven thousand, six hundred forty".