454243969 has 3 divisors (see below), whose sum is σ = 454265283. Its totient is φ = 454222656.

The previous prime is 454243957. The next prime is 454244017. The reversal of 454243969 is 969342454.

The square root of 454243969 is 21313.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 969342454 = 2 ⋅484671227.

It can be written as a sum of positive squares in only one way, i.e., 119793025 + 334450944 = 10945^2 + 18288^2 .

It is not a de Polignac number, because 454243969 - 2⁹ = 454243457 is a prime.

It is a super-2 number, since 2×454243969² = 412675166745745922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (454243939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 10657 + ... + 31969.

It is an arithmetic number, because the mean of its divisors is an integer number (151421761).

Almost surely, 2^454243969 is an apocalyptic number.

454243969 is the 21313-rd square number.

454243969 is the 10657-th centered octagonal number.

It is an amenable number.

454243969 is a deficient number, since it is larger than the sum of its proper divisors (21314).

454243969 is an frugal number, since it uses more digits than its factorization.

454243969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42626 (or 21313 counting only the distinct ones).

The product of its digits is 933120, while the sum is 46.

The cubic root of 454243969 is about 768.7109308014.

The spelling of 454243969 in words is "four hundred fifty-four million, two hundred forty-three thousand, nine hundred sixty-nine".