380826 has 12 divisors (see below), whose sum is σ = 825162. Its totient is φ = 126936.

The previous prime is 380819. The next prime is 380837. The reversal of 380826 is 628083.

It can be written as a sum of positive squares in only one way, i.e., 378225 + 2601 = 615^2 + 51^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 380826.

It is an unprimeable number.

380826 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 5 ways as a sum of consecutive naturals, for example, 10561 + ... + 10596.

2³⁸⁰⁸²⁶ is an apocalyptic number.

380826 is an abundant number, since it is smaller than the sum of its proper divisors (444336).

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

380826 is a wasteful number, since it uses less digits than its factorization.

380826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21165 (or 21162 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 380826 is about 617.1110110831. Note that the first 3 decimals coincide. The cubic root of 380826 is about 72.4840075705.

The spelling of 380826 in words is "three hundred eighty thousand, eight hundred twenty-six".