209230936 has 8 divisors (see below), whose sum is σ = 392308020. Its totient is φ = 104615464.

The previous prime is 209230927. The next prime is 209230949. The reversal of 209230936 is 639032902.

It is a tau number, because it is divible by the number of its divisors (8).

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, 13076926 + ... + 13076941.

Almost surely, 2^209230936 is an apocalyptic number.

It is an amenable number.

209230936 is a deficient number, since it is larger than the sum of its proper divisors (183077084).

209230936 is a wasteful number, since it uses less digits than its factorization.

209230936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26153873 (or 26153869 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 209230936 is about 14464.8171782432. The cubic root of 209230936 is about 593.6657114551.

The spelling of 209230936 in words is "two hundred nine million, two hundred thirty thousand, nine hundred thirty-six".