249489 has 12 divisors (see below), whose sum is σ = 379600. Its totient is φ = 157464.

The previous prime is 249463. The next prime is 249497. The reversal of 249489 is 984942.

It is a happy number.

It is not a de Polignac number, because 249489 - 2⁸ = 249233 is a prime.

It is a super-2 number, since 2×249489² = 124489522242, which contains 22 as substring.

It is a Duffinian number.

249489 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (249419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 559 + ... + 900.

2²⁴⁹⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

249489 is a deficient number, since it is larger than the sum of its proper divisors (130111).

249489 is a wasteful number, since it uses less digits than its factorization.

249489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484 (or 1481 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 249489 is about 499.4887386118. The cubic root of 249489 is about 62.9531019073.

The spelling of 249489 in words is "two hundred forty-nine thousand, four hundred eighty-nine".