209366034 has 16 divisors (see below), whose sum is σ = 421930080. Its totient is φ = 69255680.

The previous prime is 209366021. The next prime is 209366039. The reversal of 209366034 is 430663902.

It is a junction number, because it is equal to n+sod(n) for n = 209365986 and 209366004.

It is not an unprimeable number, because it can be changed into a prime (209366039) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 132399 + ... + 133970.

It is an arithmetic number, because the mean of its divisors is an integer number (26370630).

Almost surely, 2^209366034 is an apocalyptic number.

209366034 is an abundant number, since it is smaller than the sum of its proper divisors (212564046).

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

209366034 is a wasteful number, since it uses less digits than its factorization.

209366034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266505.

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 209366034 is about 14469.4863073988. The cubic root of 209366034 is about 593.7934583297.

The spelling of 209366034 in words is "two hundred nine million, three hundred sixty-six thousand, thirty-four".