654222456 has 96 divisors (see below), whose sum is σ = 1829084400. Its totient is φ = 211092480.

The previous prime is 654222451. The next prime is 654222467.

654222456 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 654222456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654222451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 641515 + ... + 642533.

Almost surely, 2^654222456 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 654222456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (914542200).

654222456 is an abundant number, since it is smaller than the sum of its proper divisors (1174861944).

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

654222456 is a wasteful number, since it uses less digits than its factorization.

654222456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309 (or 1302 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 654222456 is about 25577.7726942750. The cubic root of 654222456 is about 868.1107796062.

The spelling of 654222456 in words is "six hundred fifty-four million, two hundred twenty-two thousand, four hundred fifty-six".