206270845 has 8 divisors (see below), whose sum is σ = 270027360. Its totient is φ = 150015120.

The previous prime is 206270803. The next prime is 206270849. The reversal of 206270845 is 548072602.

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

It is not a de Polignac number, because 206270845 - 2¹⁹ = 205746557 is a prime.

It is a super-2 number, since 2×206270845² = 85095322994028050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 206270845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206270849) 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, 1875135 + ... + 1875244.

It is an arithmetic number, because the mean of its divisors is an integer number (33753420).

Almost surely, 2^206270845 is an apocalyptic number.

It is an amenable number.

206270845 is a deficient number, since it is larger than the sum of its proper divisors (63756515).

206270845 is a wasteful number, since it uses less digits than its factorization.

206270845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3750395.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 206270845 is about 14362.1323277569. The cubic root of 206270845 is about 590.8527790663.

The spelling of 206270845 in words is "two hundred six million, two hundred seventy thousand, eight hundred forty-five".