108143928 has 24 divisors (see below), whose sum is σ = 292890000. Its totient is φ = 36047952.

The previous prime is 108143909. The next prime is 108143939. The reversal of 108143928 is 829341801.

It is a tau number, because it is divible by the number of its divisors (24).

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 = 108143892 and 108143901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 750928 + ... + 751071.

It is an arithmetic number, because the mean of its divisors is an integer number (12203750).

Almost surely, 2^108143928 is an apocalyptic number.

108143928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

108143928 is an abundant number, since it is smaller than the sum of its proper divisors (184746072).

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

108143928 is a wasteful number, since it uses less digits than its factorization.

108143928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502011 (or 1502004 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 108143928 is about 10399.2272789857. The cubic root of 108143928 is about 476.4317693327.

The spelling of 108143928 in words is "one hundred eight million, one hundred forty-three thousand, nine hundred twenty-eight".