654343456 has 48 divisors (see below), whose sum is σ = 1391383224. Its totient is φ = 301123584.

The previous prime is 654343441. The next prime is 654343471.

It is a happy number.

654343456 is nontrivially palindromic in base 10.

654343456 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an interprime number because it is at equal distance from previous prime (654343441) and next prime (654343471).

It can be written as a sum of positive squares in 4 ways, for example, as 580039056 + 74304400 = 24084^2 + 8620^2 .

It is an alternating number because its digits alternate between even and odd.

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, 153060 + ... + 157276.

Almost surely, 2^654343456 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 654343456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (695691612).

654343456 is an abundant number, since it is smaller than the sum of its proper divisors (737039768).

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

654343456 is a wasteful number, since it uses less digits than its factorization.

654343456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4613 (or 4605 counting only the distinct ones).

The product of its digits is 518400, while the sum is 40.

The square root of 654343456 is about 25580.1379198784. The cubic root of 654343456 is about 868.1642960251.

The spelling of 654343456 in words is "six hundred fifty-four million, three hundred forty-three thousand, four hundred fifty-six".