209496238 has 8 divisors (see below), whose sum is σ = 359136432. Its totient is φ = 89784096.

The previous prime is 209496187. The next prime is 209496251. The reversal of 209496238 is 832694902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 209496194 and 209496203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7481995 + ... + 7482022.

It is an arithmetic number, because the mean of its divisors is an integer number (44892054).

Almost surely, 2^209496238 is an apocalyptic number.

209496238 is a deficient number, since it is larger than the sum of its proper divisors (149640194).

209496238 is a wasteful number, since it uses less digits than its factorization.

209496238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14964026.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 209496238 is about 14473.9848694131. The cubic root of 209496238 is about 593.9165255091.

The spelling of 209496238 in words is "two hundred nine million, four hundred ninety-six thousand, two hundred thirty-eight".