453968481 has 4 divisors (see below), whose sum is σ = 605291312. Its totient is φ = 302645652.

The previous prime is 453968477. The next prime is 453968497. The reversal of 453968481 is 184869354.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 453968481 - 2² = 453968477 is a prime.

It is a super-2 number, since 2×453968481² = 412174763482894722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 453968481.

It is not an unprimeable number, because it can be changed into a prime (453968401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75661411 + ... + 75661416.

It is an arithmetic number, because the mean of its divisors is an integer number (151322828).

Almost surely, 2^453968481 is an apocalyptic number.

It is an amenable number.

453968481 is a deficient number, since it is larger than the sum of its proper divisors (151322831).

453968481 is a wasteful number, since it uses less digits than its factorization.

453968481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151322830.

The product of its digits is 829440, while the sum is 48.

The square root of 453968481 is about 21306.5361098420. The cubic root of 453968481 is about 768.5554978351. Note that the first 3 decimals are identical.

The spelling of 453968481 in words is "four hundred fifty-three million, nine hundred sixty-eight thousand, four hundred eighty-one".