654104440 has 64 divisors (see below), whose sum is σ = 1608232320. Its totient is φ = 237456000.

The previous prime is 654104417. The next prime is 654104441. The reversal of 654104440 is 44401456.

It is a junction number, because it is equal to n+sod(n) for n = 654104399 and 654104408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654104441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426475 + ... + 428005.

It is an arithmetic number, because the mean of its divisors is an integer number (25128630).

Almost surely, 2^654104440 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 654104440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (804116160).

654104440 is an abundant number, since it is smaller than the sum of its proper divisors (954127880).

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

654104440 is a wasteful number, since it uses less digits than its factorization.

654104440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524 (or 2520 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 654104440 is about 25575.4655871599. The cubic root of 654104440 is about 868.0585766071.

Adding to 654104440 its reverse (44401456), we get a palindrome (698505896).

The spelling of 654104440 in words is "six hundred fifty-four million, one hundred four thousand, four hundred forty".