183920 has 60 divisors (see below), whose sum is σ = 494760. Its totient is φ = 63360.

The previous prime is 183919. The next prime is 183943. The reversal of 183920 is 29381.

183920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9671 + ... + 9689.

It is an arithmetic number, because the mean of its divisors is an integer number (8246).

2¹⁸³⁹²⁰ is an apocalyptic number.

183920 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 183920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247380).

183920 is an abundant number, since it is smaller than the sum of its proper divisors (310840).

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

183920 is a wasteful number, since it uses less digits than its factorization.

183920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 183920 is about 428.8589511716. The cubic root of 183920 is about 56.8690953094.

The spelling of 183920 in words is "one hundred eighty-three thousand, nine hundred twenty".