453240 has 48 divisors (see below), whose sum is σ = 1474200. Its totient is φ = 120768.

The previous prime is 453239. The next prime is 453247. The reversal of 453240 is 42354.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (453247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 270 + ... + 989.

2⁴⁵³²⁴⁰ is an apocalyptic number.

453240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

453240 is an abundant number, since it is smaller than the sum of its proper divisors (1020960).

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

453240 is a wasteful number, since it uses less digits than its factorization.

453240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276 (or 1269 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 453240 is about 673.2310153283. The cubic root of 453240 is about 76.8144178660.

Adding to 453240 its reverse (42354), we get a palindrome (495594).

The spelling of 453240 in words is "four hundred fifty-three thousand, two hundred forty".