108021080 has 64 divisors (see below), whose sum is σ = 258876000. Its totient is φ = 40449024.

The previous prime is 108021079. The next prime is 108021083. The reversal of 108021080 is 80120801.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108021083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66842 + ... + 68438.

Almost surely, 2^108021080 is an apocalyptic number.

108021080 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 108021080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129438000).

108021080 is an abundant number, since it is smaller than the sum of its proper divisors (150854920).

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

108021080 is a wasteful number, since it uses less digits than its factorization.

108021080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716 (or 1712 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 108021080 is about 10393.3190079012. The cubic root of 108021080 is about 476.2512972917.

Adding to 108021080 its reverse (80120801), we get a palindrome (188141881).

The spelling of 108021080 in words is "one hundred eight million, twenty-one thousand, eighty".