385278 has 16 divisors (see below), whose sum is σ = 777360. Its totient is φ = 127296.

The previous prime is 385267. The next prime is 385279. The reversal of 385278 is 872583.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

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 385278.

It is not an unprimeable number, because it can be changed into a prime (385279) by changing a digit.

385278 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 7 ways as a sum of consecutive naturals, for example, 738 + ... + 1146.

It is an arithmetic number, because the mean of its divisors is an integer number (48585).

2³⁸⁵²⁷⁸ is an apocalyptic number.

385278 is an abundant number, since it is smaller than the sum of its proper divisors (392082).

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

385278 is a wasteful number, since it uses less digits than its factorization.

385278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571.

The product of its digits is 13440, while the sum is 33.

The square root of 385278 is about 620.7076606584. The cubic root of 385278 is about 72.7653691505.

The spelling of 385278 in words is "three hundred eighty-five thousand, two hundred seventy-eight".