249450 has 24 divisors (see below), whose sum is σ = 619008. Its totient is φ = 66480.

The previous prime is 249449. The next prime is 249463. The reversal of 249450 is 54942.

It is a self number, because there is not a number n which added to its sum of digits gives 249450.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 682 + ... + 981.

It is an arithmetic number, because the mean of its divisors is an integer number (25792).

2²⁴⁹⁴⁵⁰ is an apocalyptic number.

249450 is an abundant number, since it is smaller than the sum of its proper divisors (369558).

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

249450 is a wasteful number, since it uses less digits than its factorization.

249450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678 (or 1673 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 249450 is about 499.4496971668. The cubic root of 249450 is about 62.9498214702.

The spelling of 249450 in words is "two hundred forty-nine thousand, four hundred fifty".