253340 has 24 divisors (see below), whose sum is σ = 544320. Its totient is φ = 99008.

The previous prime is 253321. The next prime is 253343. The reversal of 253340 is 43352.

253340 = T₉ + T₁₀ + ... + T₁₁₄.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253343) by changing a digit.

253340 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 941 + ... + 1179.

It is an arithmetic number, because the mean of its divisors is an integer number (22680).

2²⁵³³⁴⁰ is an apocalyptic number.

253340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253340 is an abundant number, since it is smaller than the sum of its proper divisors (290980).

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

253340 is a wasteful number, since it uses less digits than its factorization.

253340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 299 counting only the distinct ones).

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

The square root of 253340 is about 503.3289183029. The cubic root of 253340 is about 63.2753547574.

Adding to 253340 its reverse (43352), we get a palindrome (296692).

The spelling of 253340 in words is "two hundred fifty-three thousand, three hundred forty".