378530 has 8 divisors (see below), whose sum is σ = 681372. Its totient is φ = 151408.

The previous prime is 378523. The next prime is 378533. The reversal of 378530 is 35873.

It can be written as a sum of positive squares in 2 ways, for example, as 312481 + 66049 = 559^2 + 257^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 378530.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 378530.

It is not an unprimeable number, because it can be changed into a prime (378533) by changing a digit.

378530 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 3 ways as a sum of consecutive naturals, for example, 18917 + ... + 18936.

2³⁷⁸⁵³⁰ is an apocalyptic number.

378530 is a deficient number, since it is larger than the sum of its proper divisors (302842).

378530 is a wasteful number, since it uses less digits than its factorization.

378530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37860.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 378530 is about 615.2479175097. The cubic root of 378530 is about 72.3380451436.

The spelling of 378530 in words is "three hundred seventy-eight thousand, five hundred thirty".