208245790 has 8 divisors (see below), whose sum is σ = 374842440. Its totient is φ = 83298312.

The previous prime is 208245787. The next prime is 208245797. The reversal of 208245790 is 97542802.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208245797) 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, 10412280 + ... + 10412299.

It is an arithmetic number, because the mean of its divisors is an integer number (46855305).

Almost surely, 2^208245790 is an apocalyptic number.

208245790 is a deficient number, since it is larger than the sum of its proper divisors (166596650).

208245790 is a wasteful number, since it uses less digits than its factorization.

208245790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20824586.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 208245790 is about 14430.7238210701. The cubic root of 208245790 is about 592.7325038359.

The spelling of 208245790 in words is "two hundred eight million, two hundred forty-five thousand, seven hundred ninety".