655382844 has 72 divisors (see below), whose sum is σ = 1758425760. Its totient is φ = 205105152.

The previous prime is 655382843. The next prime is 655382863. The reversal of 655382844 is 448283556.

It is a self number, because there is not a number n which added to its sum of digits gives 655382844.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655382843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 306772 + ... + 308900.

It is an arithmetic number, because the mean of its divisors is an integer number (24422580).

Almost surely, 2^655382844 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 655382844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (879212880).

655382844 is an abundant number, since it is smaller than the sum of its proper divisors (1103042916).

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

655382844 is a wasteful number, since it uses less digits than its factorization.

655382844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659 (or 2654 counting only the distinct ones).

The product of its digits is 921600, while the sum is 45.

The square root of 655382844 is about 25600.4461679870. The cubic root of 655382844 is about 868.6237296664.

The spelling of 655382844 in words is "six hundred fifty-five million, three hundred eighty-two thousand, eight hundred forty-four".