108408780 has 60 divisors (see below), whose sum is σ = 340087440. Its totient is φ = 28908576.

The previous prime is 108408749. The next prime is 108408787. The reversal of 108408780 is 87804801.

It is a tau number, because it is divible by the number of its divisors (60).

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

It is not an unprimeable number, because it can be changed into a prime (108408787) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 31840 + ... + 35079.

It is an arithmetic number, because the mean of its divisors is an integer number (5668124).

Almost surely, 2^108408780 is an apocalyptic number.

108408780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108408780 is an abundant number, since it is smaller than the sum of its proper divisors (231678660).

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

108408780 is a wasteful number, since it uses less digits than its factorization.

108408780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66940 (or 66929 counting only the distinct ones).

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

The square root of 108408780 is about 10411.9537071579. The cubic root of 108408780 is about 476.8203904298.

The spelling of 108408780 in words is "one hundred eight million, four hundred eight thousand, seven hundred eighty".