2209683456 has 192 divisors, whose sum is σ = 6633900000. Its totient is φ = 726663168.

The previous prime is 2209683433. The next prime is 2209683457. The reversal of 2209683456 is 6543869022.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2209683457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4921120 + ... + 4921568.

Almost surely, 2^2209683456 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 2209683456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3316950000).

2209683456 is an abundant number, since it is smaller than the sum of its proper divisors (4424216544).

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

2209683456 is an equidigital number, since it uses as much as digits as its factorization.

2209683456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569 (or 543 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 2209683456 is about 47007.2702462077. The cubic root of 2209683456 is about 1302.4968691218.

The spelling of 2209683456 in words is "two billion, two hundred nine million, six hundred eighty-three thousand, four hundred fifty-six".