209392030 has 8 divisors (see below), whose sum is σ = 376905672. Its totient is φ = 83756808.

The previous prime is 209392019. The next prime is 209392031. The reversal of 209392030 is 30293902.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 209392030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209392031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10469592 + ... + 10469611.

It is an arithmetic number, because the mean of its divisors is an integer number (47113209).

Almost surely, 2^209392030 is an apocalyptic number.

209392030 is a deficient number, since it is larger than the sum of its proper divisors (167513642).

209392030 is a wasteful number, since it uses less digits than its factorization.

209392030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20939210.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 209392030 is about 14470.3845836937. The cubic root of 209392030 is about 593.8180334969.

The spelling of 209392030 in words is "two hundred nine million, three hundred ninety-two thousand, thirty".