380778 has 8 divisors (see below), whose sum is σ = 761568. Its totient is φ = 126924.

The previous prime is 380777. The next prime is 380797. The reversal of 380778 is 877083.

It is a sphenic number, since it is the product of 3 distinct primes.

380778 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 380778.

It is not an unprimeable number, because it can be changed into a prime (380777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31726 + ... + 31737.

It is an arithmetic number, because the mean of its divisors is an integer number (95196).

2³⁸⁰⁷⁷⁸ is an apocalyptic number.

380778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

380778 is a wasteful number, since it uses less digits than its factorization.

380778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63468.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 380778 is about 617.0721189618. The cubic root of 380778 is about 72.4809621039.

The spelling of 380778 in words is "three hundred eighty thousand, seven hundred seventy-eight".