209298012 has 72 divisors (see below), whose sum is σ = 619758720. Its totient is φ = 54361440.

The previous prime is 209297983. The next prime is 209298049. The reversal of 209298012 is 210892902.

It is a happy number.

209298012 is digitally balanced in base 2, because in such base 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 (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9712 + ... + 22647.

It is an arithmetic number, because the mean of its divisors is an integer number (8607760).

Almost surely, 2^209298012 is an apocalyptic number.

209298012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

209298012 is an abundant number, since it is smaller than the sum of its proper divisors (410460708).

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

209298012 is a wasteful number, since it uses less digits than its factorization.

209298012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32391 (or 32382 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 209298012 is about 14467.1355837982. The cubic root of 209298012 is about 593.7291445011.

The spelling of 209298012 in words is "two hundred nine million, two hundred ninety-eight thousand, twelve".