108168720 has 80 divisors (see below), whose sum is σ = 365815872. Its totient is φ = 26222080.

The previous prime is 108168719. The next prime is 108168727. The reversal of 108168720 is 27861801.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (108168727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17847 + ... + 23126.

Almost surely, 2^108168720 is an apocalyptic number.

108168720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108168720 is an abundant number, since it is smaller than the sum of its proper divisors (257647152).

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

108168720 is a wasteful number, since it uses less digits than its factorization.

108168720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41000 (or 40994 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 108168720 is about 10400.4192223198. The cubic root of 108168720 is about 476.4681738852.

The spelling of 108168720 in words is "one hundred eight million, one hundred sixty-eight thousand, seven hundred twenty".