654646468 has 72 divisors (see below), whose sum is σ = 1386196224. Its totient is φ = 269438400.

The previous prime is 654646453. The next prime is 654646469. The reversal of 654646468 is 864646456.

It is a Harshad number since it is a multiple of its sum of digits (49).

Its product of digits (3317760) is a multiple of the sum of its prime divisors (864).

It is not an unprimeable number, because it can be changed into a prime (654646469) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 990058 + ... + 990718.

Almost surely, 2^654646468 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 654646468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (693098112).

654646468 is an abundant number, since it is smaller than the sum of its proper divisors (731549756).

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

654646468 is a wasteful number, since it uses less digits than its factorization.

654646468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873 (or 864 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 49.

The square root of 654646468 is about 25586.0600327600. The cubic root of 654646468 is about 868.2982845808.

The spelling of 654646468 in words is "six hundred fifty-four million, six hundred forty-six thousand, four hundred sixty-eight".