454440340 has 24 divisors (see below), whose sum is σ = 976520160. Its totient is φ = 177548448.

The previous prime is 454440323. The next prime is 454440341. The reversal of 454440340 is 43044454.

It is a junction number, because it is equal to n+sod(n) for n = 454440299 and 454440308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454440341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263350 + ... + 265069.

It is an arithmetic number, because the mean of its divisors is an integer number (40688340).

Almost surely, 2^454440340 is an apocalyptic number.

It is an amenable number.

454440340 is an abundant number, since it is smaller than the sum of its proper divisors (522079820).

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

454440340 is a wasteful number, since it uses less digits than its factorization.

454440340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528471 (or 528469 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 454440340 is about 21317.6063384236. The cubic root of 454440340 is about 768.8216868395.

Adding to 454440340 its reverse (43044454), we get a palindrome (497484794).

The spelling of 454440340 in words is "four hundred fifty-four million, four hundred forty thousand, three hundred forty".