209334812 has 6 divisors (see below), whose sum is σ = 366335928. Its totient is φ = 104667404.

The previous prime is 209334751. The next prime is 209334823. The reversal of 209334812 is 218433902.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26166848 + ... + 26166855.

It is an arithmetic number, because the mean of its divisors is an integer number (61055988).

Almost surely, 2^209334812 is an apocalyptic number.

It is an amenable number.

209334812 is a deficient number, since it is larger than the sum of its proper divisors (157001116).

209334812 is a wasteful number, since it uses less digits than its factorization.

209334812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52333707 (or 52333705 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 209334812 is about 14468.4073760729. The cubic root of 209334812 is about 593.7639401048.

The spelling of 209334812 in words is "two hundred nine million, three hundred thirty-four thousand, eight hundred twelve".