108201820 has 24 divisors (see below), whose sum is σ = 228234384. Its totient is φ = 43088256.

The previous prime is 108201791. The next prime is 108201823. The reversal of 108201820 is 28102801.

It is a junction number, because it is equal to n+sod(n) for n = 108201791 and 108201800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108201823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7377 + ... + 16456.

It is an arithmetic number, because the mean of its divisors is an integer number (9509766).

Almost surely, 2^108201820 is an apocalyptic number.

108201820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108201820 is an abundant number, since it is smaller than the sum of its proper divisors (120032564).

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

108201820 is a wasteful number, since it uses less digits than its factorization.

108201820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24069 (or 24067 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 108201820 is about 10402.0103826135. The cubic root of 108201820 is about 476.5167692282.

The spelling of 108201820 in words is "one hundred eight million, two hundred one thousand, eight hundred twenty".