454023505 has 24 divisors (see below), whose sum is σ = 622222776. Its totient is φ = 315064320.

The previous prime is 454023499. The next prime is 454023509. The reversal of 454023505 is 505320454.

It can be written as a sum of positive squares in 12 ways, for example, as 844561 + 453178944 = 919^2 + 21288^2 .

It is not a de Polignac number, because 454023505 - 2⁷ = 454023377 is a prime.

It is a super-2 number, since 2×454023505² = 412274686184970050, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454023509) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 707985 + ... + 708625.

It is an arithmetic number, because the mean of its divisors is an integer number (25925949).

Almost surely, 2^454023505 is an apocalyptic number.

It is an amenable number.

454023505 is a deficient number, since it is larger than the sum of its proper divisors (168199271).

454023505 is an equidigital number, since it uses as much as digits as its factorization.

454023505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 454023505 is about 21307.8273176784. The cubic root of 454023505 is about 768.5865479270.

Adding to 454023505 its reverse (505320454), we get a palindrome (959343959).

The spelling of 454023505 in words is "four hundred fifty-four million, twenty-three thousand, five hundred five".