654464456 has 8 divisors (see below), whose sum is σ = 1227120870. Its totient is φ = 327232224.

The previous prime is 654464441. The next prime is 654464479.

654464456 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 579364900 + 75099556 = 24070^2 + 8666^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40904021 + ... + 40904036.

Almost surely, 2^654464456 is an apocalyptic number.

It is an amenable number.

654464456 is a deficient number, since it is larger than the sum of its proper divisors (572656414).

654464456 is a wasteful number, since it uses less digits than its factorization.

654464456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81808063 (or 81808059 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 44.

The square root of 654464456 is about 25582.5029268053. The cubic root of 654464456 is about 868.2178058470.

The spelling of 654464456 in words is "six hundred fifty-four million, four hundred sixty-four thousand, four hundred fifty-six".