380816 has 10 divisors (see below), whose sum is σ = 737862. Its totient is φ = 190400.

The previous prime is 380803. The next prime is 380819. The reversal of 380816 is 618083.

380816 = T₁₃₈ + T₁₃₉ + ... + T₁₆₉.

It can be written as a sum of positive squares in only one way, i.e., 355216 + 25600 = 596^2 + 160^2 .

It is not an unprimeable number, because it can be changed into a prime (380819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11885 + ... + 11916.

2³⁸⁰⁸¹⁶ is an apocalyptic number.

It is an amenable number.

380816 is a deficient number, since it is larger than the sum of its proper divisors (357046).

380816 is a wasteful number, since it uses less digits than its factorization.

380816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23809 (or 23803 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 380816 is about 617.1029087600. The cubic root of 380816 is about 72.4833731194.

Adding to 380816 its reverse (618083), we get a palindrome (998899).

The spelling of 380816 in words is "three hundred eighty thousand, eight hundred sixteen".