454240 has 48 divisors (see below), whose sum is σ = 1143072. Its totient is φ = 169984.

The previous prime is 454231. The next prime is 454247. The reversal of 454240 is 42454.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454247) by changing a digit.

454240 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, 2637 + ... + 2803.

It is an arithmetic number, because the mean of its divisors is an integer number (23814).

2⁴⁵⁴²⁴⁰ is an apocalyptic number.

454240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 454240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (571536).

454240 is an abundant number, since it is smaller than the sum of its proper divisors (688832).

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

454240 is a wasteful number, since it uses less digits than its factorization.

454240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 454240 is about 673.9732932394. The cubic root of 454240 is about 76.8708691900.

Adding to 454240 its reverse (42454), we get a palindrome (496694).

The spelling of 454240 in words is "four hundred fifty-four thousand, two hundred forty".