654484456 has 8 divisors (see below), whose sum is σ = 1227158370. Its totient is φ = 327242224.

The previous prime is 654484421. The next prime is 654484459.

654484456 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 410062500 + 244421956 = 20250^2 + 15634^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (654484459) 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 as a sum of consecutive naturals, namely, 40905271 + ... + 40905286.

Almost surely, 2^654484456 is an apocalyptic number.

It is an amenable number.

654484456 is a deficient number, since it is larger than the sum of its proper divisors (572673914).

654484456 is a wasteful number, since it uses less digits than its factorization.

654484456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81810563 (or 81810559 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 46.

The square root of 654484456 is about 25582.8938159857. The cubic root of 654484456 is about 868.2266498105.

It can be divided in two parts, 654484 and 456, that added together give a triangular number (654940 = T₁₁₄₄).

The spelling of 654484456 in words is "six hundred fifty-four million, four hundred eighty-four thousand, four hundred fifty-six".