2273570208 has 648 divisors, whose sum is σ = 8905435812. Its totient is φ = 564350976.

The previous prime is 2273570183. The next prime is 2273570227. The reversal of 2273570208 is 8020753722.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2268426384 + 5143824 = 47628^2 + 2268^2 .

It is a tau number, because it is divible by the number of its divisors (648).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 133739416 + ... + 133739432.

Almost surely, 2^2273570208 is an apocalyptic number.

2273570208 is a gapful number since it is divisible by the number (28) 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 2273570208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4452717906).

2273570208 is an abundant number, since it is smaller than the sum of its proper divisors (6631865604).

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

2273570208 is an equidigital number, since it uses as much as digits as its factorization.

2273570208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 2273570208 is about 47681.9694224138. The cubic root of 2273570208 is about 1314.9304725007.

It can be divided in two parts, 2273570 and 208, that added together give a triangular number (2273778 = T₂₁₃₂).

The spelling of 2273570208 in words is "two billion, two hundred seventy-three million, five hundred seventy thousand, two hundred eight".