249534 has 16 divisors (see below), whose sum is σ = 554640. Its totient is φ = 83160.

The previous prime is 249533. The next prime is 249539. The reversal of 249534 is 435942.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 249498 and 249507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2257 + ... + 2364.

It is an arithmetic number, because the mean of its divisors is an integer number (34665).

2²⁴⁹⁵³⁴ is an apocalyptic number.

249534 is an abundant number, since it is smaller than the sum of its proper divisors (305106).

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

249534 is a wasteful number, since it uses less digits than its factorization.

249534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4632 (or 4626 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 249534 is about 499.5337826414. The cubic root of 249534 is about 62.9568866023.

The spelling of 249534 in words is "two hundred forty-nine thousand, five hundred thirty-four".