208020461 has 8 divisors (see below), whose sum is σ = 230319264. Its totient is φ = 186286320.

The previous prime is 208020443. The next prime is 208020479. The reversal of 208020461 is 164020802.

It is an interprime number because it is at equal distance from previous prime (208020443) and next prime (208020479).

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

It is not a de Polignac number, because 208020461 - 2²² = 203826157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208020061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140390 + ... + 141863.

It is an arithmetic number, because the mean of its divisors is an integer number (28789908).

Almost surely, 2^208020461 is an apocalyptic number.

It is an amenable number.

208020461 is a deficient number, since it is larger than the sum of its proper divisors (22298803).

208020461 is a wasteful number, since it uses less digits than its factorization.

208020461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282331.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 208020461 is about 14422.9144419566. The cubic root of 208020461 is about 592.5186411317.

The spelling of 208020461 in words is "two hundred eight million, twenty thousand, four hundred sixty-one".