253430 has 8 divisors (see below), whose sum is σ = 456192. Its totient is φ = 101368.

The previous prime is 253427. The next prime is 253433. The reversal of 253430 is 34352.

It is an interprime number because it is at equal distance from previous prime (253427) and next prime (253433).

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 253399 and 253408.

It is a congruent number.

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, 12662 + ... + 12681.

It is an arithmetic number, because the mean of its divisors is an integer number (57024).

2²⁵³⁴³⁰ is an apocalyptic number.

253430 is a deficient number, since it is larger than the sum of its proper divisors (202762).

253430 is a wasteful number, since it uses less digits than its factorization.

253430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25350.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 253430 is about 503.4183151217. The cubic root of 253430 is about 63.2828468072.

Adding to 253430 its reverse (34352), we get a palindrome (287782).

The spelling of 253430 in words is "two hundred fifty-three thousand, four hundred thirty".