253420 has 12 divisors (see below), whose sum is σ = 532224. Its totient is φ = 101360.

The previous prime is 253417. The next prime is 253423. The reversal of 253420 is 24352.

It is an interprime number because it is at equal distance from previous prime (253417) and next prime (253423).

It is a junction number, because it is equal to n+sod(n) for n = 253394 and 253403.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6316 + ... + 6355.

It is an arithmetic number, because the mean of its divisors is an integer number (44352).

2²⁵³⁴²⁰ is an apocalyptic number.

253420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253420 is an abundant number, since it is smaller than the sum of its proper divisors (278804).

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

253420 is a wasteful number, since it uses less digits than its factorization.

253420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12680 (or 12678 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 253420 is about 503.4083829258. The cubic root of 253420 is about 63.2820144449.

Adding to 253420 its reverse (24352), we get a palindrome (277772).

The spelling of 253420 in words is "two hundred fifty-three thousand, four hundred twenty".