654444456 has 32 divisors (see below), whose sum is σ = 1680332640. Its totient is φ = 212251968.

The previous prime is 654444449. The next prime is 654444467.

654444456 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367606 + ... + 369381.

It is an arithmetic number, because the mean of its divisors is an integer number (52510395).

Almost surely, 2^654444456 is an apocalyptic number.

It is an amenable number.

654444456 is an abundant number, since it is smaller than the sum of its proper divisors (1025888184).

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

654444456 is a wasteful number, since it uses less digits than its factorization.

654444456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737033 (or 737029 counting only the distinct ones).

The product of its digits is 921600, while the sum is 42.

The square root of 654444456 is about 25582.1120316521. The cubic root of 654444456 is about 868.2089617034.

The spelling of 654444456 in words is "six hundred fifty-four million, four hundred forty-four thousand, four hundred fifty-six".