654346368 has 144 divisors (see below), whose sum is σ = 2039540490. Its totient is φ = 201277440.

The previous prime is 654346309. The next prime is 654346379. The reversal of 654346368 is 863643456.

654346368 is a `hidden beast` number, since 6 + 5 + 4 + 3 + 4 + 636 + 8 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 413227584 + 241118784 = 20328^2 + 15528^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 193008 + ... + 196368.

Almost surely, 2^654346368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 654346368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1019770245).

654346368 is an abundant number, since it is smaller than the sum of its proper divisors (1385194122).

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

654346368 is a wasteful number, since it uses less digits than its factorization.

654346368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3407 (or 3379 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 45.

The square root of 654346368 is about 25580.1948389765. The cubic root of 654346368 is about 868.1655838762.

The spelling of 654346368 in words is "six hundred fifty-four million, three hundred forty-six thousand, three hundred sixty-eight".