2653444220 has 192 divisors, whose sum is σ = 6897623040. Its totient is φ = 837838848.

The previous prime is 2653444207. The next prime is 2653444271. The reversal of 2653444220 is 224443562.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13469162 + ... + 13469358.

It is an arithmetic number, because the mean of its divisors is an integer number (35925120).

Almost surely, 2^2653444220 is an apocalyptic number.

2653444220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2653444220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3448811520).

2653444220 is an abundant number, since it is smaller than the sum of its proper divisors (4244178820).

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

2653444220 is a wasteful number, since it uses less digits than its factorization.

2653444220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

The square root of 2653444220 is about 51511.5930640861. The cubic root of 2653444220 is about 1384.4267669106.

Adding to 2653444220 its reverse (224443562), we get a palindrome (2877887782).

The spelling of 2653444220 in words is "two billion, six hundred fifty-three million, four hundred forty-four thousand, two hundred twenty".