206748445 has 16 divisors (see below), whose sum is σ = 255870720. Its totient is φ = 160272000.

The previous prime is 206748439. The next prime is 206748457. The reversal of 206748445 is 544847602.

It is a happy number.

It is not a de Polignac number, because 206748445 - 2⁷ = 206748317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 206748398 and 206748407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27616 + ... + 34294.

It is an arithmetic number, because the mean of its divisors is an integer number (15991920).

Almost surely, 2^206748445 is an apocalyptic number.

It is an amenable number.

206748445 is a deficient number, since it is larger than the sum of its proper divisors (49122275).

206748445 is a wasteful number, since it uses less digits than its factorization.

206748445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6876.

The product of its (nonzero) digits is 215040, while the sum is 40.

The square root of 206748445 is about 14378.7497717987. The cubic root of 206748445 is about 591.3084481997.

The spelling of 206748445 in words is "two hundred six million, seven hundred forty-eight thousand, four hundred forty-five".