340378 has 4 divisors (see below), whose sum is σ = 510570. Its totient is φ = 170188.

The previous prime is 340369. The next prime is 340381. The reversal of 340378 is 873043.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 316969 + 23409 = 563^2 + 153^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85093 + ... + 85096.

2³⁴⁰³⁷⁸ is an apocalyptic number.

340378 is a deficient number, since it is larger than the sum of its proper divisors (170192).

340378 is a wasteful number, since it uses less digits than its factorization.

340378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170191.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 340378 is about 583.4192317708. The cubic root of 340378 is about 69.8211762143.

It can be divided in two parts, 3403 and 78, that added together give a square (3481 = 59²).

The spelling of 340378 in words is "three hundred forty thousand, three hundred seventy-eight".