209030328 has 64 divisors (see below), whose sum is σ = 625312800. Its totient is φ = 64316160.

The previous prime is 209030323. The next prime is 209030329. The reversal of 209030328 is 823030902.

209030328 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209030323) 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, 34413 + ... + 40028.

Almost surely, 2^209030328 is an apocalyptic number.

It is an amenable number.

209030328 is an abundant number, since it is smaller than the sum of its proper divisors (416282472).

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

209030328 is a wasteful number, since it uses less digits than its factorization.

209030328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74469 (or 74459 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 209030328 is about 14457.8811725647. The cubic root of 209030328 is about 593.4759177029.

The spelling of 209030328 in words is "two hundred nine million, thirty thousand, three hundred twenty-eight".