308480 has 36 divisors (see below), whose sum is σ = 741972. Its totient is φ = 122880.

The previous prime is 308467. The next prime is 308489. The reversal of 308480 is 84803.

It can be written as a sum of positive squares in 2 ways, for example, as 173056 + 135424 = 416^2 + 368^2 .

It is a nialpdrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 308480.

It is not an unprimeable number, because it can be changed into a prime (308489) by changing a digit.

308480 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1160 + ... + 1400.

2³⁰⁸⁴⁸⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 308480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370986).

308480 is an abundant number, since it is smaller than the sum of its proper divisors (433492).

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

308480 is an equidigital number, since it uses as much as digits as its factorization.

308480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 308480 is about 555.4097586467. The cubic root of 308480 is about 67.5681981058.

The spelling of 308480 in words is "three hundred eight thousand, four hundred eighty".