249423 has 8 divisors (see below), whose sum is σ = 337536. Its totient is φ = 163800.

The previous prime is 249421. The next prime is 249427. The reversal of 249423 is 324942.

It is a happy number.

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

It is not a de Polignac number, because 249423 - 2¹ = 249421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 249393 and 249402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373 + ... + 798.

It is an arithmetic number, because the mean of its divisors is an integer number (42192).

2²⁴⁹⁴²³ is an apocalyptic number.

249423 is a deficient number, since it is larger than the sum of its proper divisors (88113).

249423 is a wasteful number, since it uses less digits than its factorization.

249423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245.

The product of its digits is 1728, while the sum is 24.

The square root of 249423 is about 499.4226666862. The cubic root of 249423 is about 62.9475501981.

The spelling of 249423 in words is "two hundred forty-nine thousand, four hundred twenty-three".