253446 has 16 divisors (see below), whose sum is σ = 517104. Its totient is φ = 82784.

The previous prime is 253439. The next prime is 253447. The reversal of 253446 is 644352.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253447) 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, 81 + ... + 716.

It is an arithmetic number, because the mean of its divisors is an integer number (32319).

2²⁵³⁴⁴⁶ is an apocalyptic number.

253446 is an abundant number, since it is smaller than the sum of its proper divisors (263658).

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

253446 is a wasteful number, since it uses less digits than its factorization.

253446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855.

The product of its digits is 2880, while the sum is 24.

The square root of 253446 is about 503.4342062276. The cubic root of 253446 is about 63.2841785415.

Adding to 253446 its reverse (644352), we get a palindrome (897798).

The spelling of 253446 in words is "two hundred fifty-three thousand, four hundred forty-six".