209496368 has 20 divisors (see below), whose sum is σ = 416870640. Its totient is φ = 101916864.

The previous prime is 209496367. The next prime is 209496383. The reversal of 209496368 is 863694902.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (209496367) 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 3 ways as a sum of consecutive naturals, for example, 176348 + ... + 177531.

It is an arithmetic number, because the mean of its divisors is an integer number (20843532).

Almost surely, 2^209496368 is an apocalyptic number.

It is an amenable number.

209496368 is a deficient number, since it is larger than the sum of its proper divisors (207374272).

209496368 is a wasteful number, since it uses less digits than its factorization.

209496368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353924 (or 353918 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 209496368 is about 14473.9893602282. The cubic root of 209496368 is about 593.9166483580.

The spelling of 209496368 in words is "two hundred nine million, four hundred ninety-six thousand, three hundred sixty-eight".