108780840 has 128 divisors (see below), whose sum is σ = 414432000. Its totient is φ = 24862464.

The previous prime is 108780817. The next prime is 108780863. The reversal of 108780840 is 48087801.

It is an interprime number because it is at equal distance from previous prime (108780817) and next prime (108780863).

It is a super-2 number, since 2×108780840² = 23666542302211200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 108780795 and 108780804.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 366 + ... + 14754.

It is an arithmetic number, because the mean of its divisors is an integer number (3237750).

Almost surely, 2^108780840 is an apocalyptic number.

108780840 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 108780840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207216000).

108780840 is an abundant number, since it is smaller than the sum of its proper divisors (305651160).

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

108780840 is a wasteful number, since it uses less digits than its factorization.

108780840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14416 (or 14406 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 108780840 is about 10429.8053673115. The cubic root of 108780840 is about 477.3652516724.

The spelling of 108780840 in words is "one hundred eight million, seven hundred eighty thousand, eight hundred forty".