344878 has 4 divisors (see below), whose sum is σ = 517320. Its totient is φ = 172438.

The previous prime is 344873. The next prime is 344887. The reversal of 344878 is 878443.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344873) by changing a digit.

344878 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 as a sum of consecutive naturals, namely, 86218 + ... + 86221.

It is an arithmetic number, because the mean of its divisors is an integer number (129330).

2³⁴⁴⁸⁷⁸ is an apocalyptic number.

344878 is a deficient number, since it is larger than the sum of its proper divisors (172442).

344878 is a wasteful number, since it uses less digits than its factorization.

344878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172441.

The product of its digits is 21504, while the sum is 34.

The square root of 344878 is about 587.2631437439. The cubic root of 344878 is about 70.1275226463.

The spelling of 344878 in words is "three hundred forty-four thousand, eight hundred seventy-eight".