249378 has 16 divisors (see below), whose sum is σ = 505440. Its totient is φ = 82016.

The previous prime is 249377. The next prime is 249383. The reversal of 249378 is 873942.

249378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (249377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301 + ... + 767.

It is an arithmetic number, because the mean of its divisors is an integer number (31590).

2²⁴⁹³⁷⁸ is an apocalyptic number.

249378 is an abundant number, since it is smaller than the sum of its proper divisors (256062).

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

249378 is a wasteful number, since it uses less digits than its factorization.

249378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561.

The product of its digits is 12096, while the sum is 33.

The square root of 249378 is about 499.3776126340. The cubic root of 249378 is about 62.9437643803.

The spelling of 249378 in words is "two hundred forty-nine thousand, three hundred seventy-eight".