206040445 has 32 divisors (see below), whose sum is σ = 272248704. Its totient is φ = 148780800.

The previous prime is 206040379. The next prime is 206040451. The reversal of 206040445 is 544040602.

It is not a de Polignac number, because 206040445 - 2¹⁷ = 205909373 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 976390 + ... + 976600.

It is an arithmetic number, because the mean of its divisors is an integer number (8507772).

Almost surely, 2^206040445 is an apocalyptic number.

It is an amenable number.

206040445 is a deficient number, since it is larger than the sum of its proper divisors (66208259).

206040445 is a wasteful number, since it uses less digits than its factorization.

206040445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 206040445 is about 14354.1089935948. The cubic root of 206040445 is about 590.6327072518.

The spelling of 206040445 in words is "two hundred six million, forty thousand, four hundred forty-five".