209228032 has 36 divisors (see below), whose sum is σ = 449771980. Its totient is φ = 96565248.

The previous prime is 209228029. The next prime is 209228039. The reversal of 209228032 is 230822902.

It can be written as a sum of positive squares in 2 ways, for example, as 32444416 + 176783616 = 5696^2 + 13296^2 .

It is not an unprimeable number, because it can be changed into a prime (209228039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28107 + ... + 34762.

Almost surely, 2^209228032 is an apocalyptic number.

It is an amenable number.

209228032 is an abundant number, since it is smaller than the sum of its proper divisors (240543948).

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

209228032 is an equidigital number, since it uses as much as digits as its factorization.

209228032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62898 (or 62884 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 209228032 is about 14464.7167963981. The cubic root of 209228032 is about 593.6629648677.

The spelling of 209228032 in words is "two hundred nine million, two hundred twenty-eight thousand, thirty-two".