378890 has 8 divisors (see below), whose sum is σ = 682020. Its totient is φ = 151552.

The previous prime is 378883. The next prime is 378893. The reversal of 378890 is 98873.

It can be written as a sum of positive squares in 2 ways, for example, as 361201 + 17689 = 601^2 + 133^2 .

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 378890.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18935 + ... + 18954.

2³⁷⁸⁸⁹⁰ is an apocalyptic number.

378890 is a deficient number, since it is larger than the sum of its proper divisors (303130).

378890 is a wasteful number, since it uses less digits than its factorization.

378890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37896.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 378890 is about 615.5404129706. The cubic root of 378890 is about 72.3609701826.

The spelling of 378890 in words is "three hundred seventy-eight thousand, eight hundred ninety".