183280 has 40 divisors (see below), whose sum is σ = 446400. Its totient is φ = 69888.

The previous prime is 183263. The next prime is 183283. The reversal of 183280 is 82381.

It is a tau number, because it is divible by the number of its divisors (40).

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (183283) 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, 2281 + ... + 2359.

It is an arithmetic number, because the mean of its divisors is an integer number (11160).

2¹⁸³²⁸⁰ is an apocalyptic number.

183280 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 183280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223200).

183280 is an abundant number, since it is smaller than the sum of its proper divisors (263120).

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

183280 is a wasteful number, since it uses less digits than its factorization.

183280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 183280 is about 428.1121348432. The cubic root of 183280 is about 56.8030547851.

The spelling of 183280 in words is "one hundred eighty-three thousand, two hundred eighty".