2209130450 has 90 divisors (see below), whose sum is σ = 4563860889. Its totient is φ = 795512960.

The previous prime is 2209130447. The next prime is 2209130509. The reversal of 2209130450 is 540319022.

2209130450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 416200801 + 1792929649 = 20401^2 + 42343^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=33235.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 96049139 + ... + 96049161.

Almost surely, 2^2209130450 is an apocalyptic number.

2209130450 is an abundant number, since it is smaller than the sum of its proper divisors (2354730439).

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

2209130450 is an frugal number, since it uses more digits than its factorization.

2209130450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 2209130450 is about 47001.3877454698. The cubic root of 2209130450 is about 1302.3882036811.

Adding to 2209130450 its reverse (540319022), we get a palindrome (2749449472).

The spelling of 2209130450 in words is "two billion, two hundred nine million, one hundred thirty thousand, four hundred fifty".