382778 has 16 divisors (see below), whose sum is σ = 635904. Its totient is φ = 171360.

The previous prime is 382777. The next prime is 382801. The reversal of 382778 is 877283.

It is a happy number.

382778 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 382778.

It is not an unprimeable number, because it can be changed into a prime (382777) 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, 2726 + ... + 2862.

It is an arithmetic number, because the mean of its divisors is an integer number (39744).

2³⁸²⁷⁷⁸ is an apocalyptic number.

382778 is a deficient number, since it is larger than the sum of its proper divisors (253126).

382778 is a wasteful number, since it uses less digits than its factorization.

382778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277.

The product of its digits is 18816, while the sum is 35.

The square root of 382778 is about 618.6905526998. The cubic root of 382778 is about 72.6076403457.

The spelling of 382778 in words is "three hundred eighty-two thousand, seven hundred seventy-eight".