253424 has 20 divisors (see below), whose sum is σ = 502944. Its totient is φ = 123648.

The previous prime is 253423. The next prime is 253427. The reversal of 253424 is 424352.

It is a junction number, because it is equal to n+sod(n) for n = 253396 and 253405.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 253424.

It is not an unprimeable number, because it can be changed into a prime (253423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 584 + ... + 920.

2²⁵³⁴²⁴ is an apocalyptic number.

It is an amenable number.

253424 is a deficient number, since it is larger than the sum of its proper divisors (249520).

253424 is a wasteful number, since it uses less digits than its factorization.

253424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 386 counting only the distinct ones).

The product of its digits is 960, while the sum is 20.

The square root of 253424 is about 503.4123558277. The cubic root of 253424 is about 63.2823473924.

Adding to 253424 its reverse (424352), we get a palindrome (677776).

The spelling of 253424 in words is "two hundred fifty-three thousand, four hundred twenty-four".