209326228600 has 48 divisors (see below), whose sum is σ = 489496761720. Its totient is φ = 83246486400.

The previous prime is 209326228567. The next prime is 209326228609. The reversal of 209326228600 is 6822623902.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209326228609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2990346 + ... + 3059545.

Almost surely, 2^209326228600 is an apocalyptic number.

209326228600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

209326228600 is an abundant number, since it is smaller than the sum of its proper divisors (280170533120).

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

209326228600 is a wasteful number, since it uses less digits than its factorization.

209326228600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6050080 (or 6050071 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 209326228600 in words is "two hundred nine billion, three hundred twenty-six million, two hundred twenty-eight thousand, six hundred".