378522 has 24 divisors (see below), whose sum is σ = 869076. Its totient is φ = 118656.

The previous prime is 378509. The next prime is 378523. The reversal of 378522 is 225873.

It can be written as a sum of positive squares in 2 ways, for example, as 349281 + 29241 = 591^2 + 171^2 .

It is not an unprimeable number, because it can be changed into a prime (378523) by changing a digit.

378522 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 11 ways as a sum of consecutive naturals, for example, 313 + ... + 924.

2³⁷⁸⁵²² is an apocalyptic number.

378522 is an abundant number, since it is smaller than the sum of its proper divisors (490554).

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

378522 is a wasteful number, since it uses less digits than its factorization.

378522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262 (or 1259 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 378522 is about 615.2414160311. The cubic root of 378522 is about 72.3375355333.

It can be divided in two parts, 378 and 522, that added together give a square (900 = 30²).

The spelling of 378522 in words is "three hundred seventy-eight thousand, five hundred twenty-two".