249078 has 8 divisors (see below), whose sum is σ = 498168. Its totient is φ = 83024.

The previous prime is 249059. The next prime is 249079. The reversal of 249078 is 870942.

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

249078 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20751 + ... + 20762.

It is an arithmetic number, because the mean of its divisors is an integer number (62271).

2²⁴⁹⁰⁷⁸ is an apocalyptic number.

249078 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

249078 is a wasteful number, since it uses less digits than its factorization.

249078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41518.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 249078 is about 499.0771483448. The cubic root of 249078 is about 62.9185139486.

The spelling of 249078 in words is "two hundred forty-nine thousand, seventy-eight".