253434 has 8 divisors (see below), whose sum is σ = 506880. Its totient is φ = 84476.

The previous prime is 253433. The next prime is 253439. The reversal of 253434 is 434352.

It is a happy number.

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

253434 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 253434.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 253434.

It is not an unprimeable number, because it can be changed into a prime (253433) 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, 21114 + ... + 21125.

It is an arithmetic number, because the mean of its divisors is an integer number (63360).

2²⁵³⁴³⁴ is an apocalyptic number.

253434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

253434 is a wasteful number, since it uses less digits than its factorization.

253434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42244.

The product of its digits is 1440, while the sum is 21.

The square root of 253434 is about 503.4222879452. The cubic root of 253434 is about 63.2831797461.

Adding to 253434 its reverse (434352), we get a palindrome (687786).

The spelling of 253434 in words is "two hundred fifty-three thousand, four hundred thirty-four".