249328 has 10 divisors (see below), whose sum is σ = 483104. Its totient is φ = 124656.

The previous prime is 249317. The next prime is 249329. The reversal of 249328 is 823942.

It is a d-powerful number, because it can be written as 2⁴ + 4 + 3¹¹ + 9⁴ + 2¹⁶ + 8² .

It is a junction number, because it is equal to n+sod(n) for n = 249296 and 249305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249329) by changing a digit.

249328 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 as a sum of consecutive naturals, namely, 7776 + ... + 7807.

2²⁴⁹³²⁸ is an apocalyptic number.

It is an amenable number.

249328 is a deficient number, since it is larger than the sum of its proper divisors (233776).

249328 is a wasteful number, since it uses less digits than its factorization.

249328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15591 (or 15585 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 249328 is about 499.3275478080. The cubic root of 249328 is about 62.9395573818.

The spelling of 249328 in words is "two hundred forty-nine thousand, three hundred twenty-eight".