206432536 has 8 divisors (see below), whose sum is σ = 387061020. Its totient is φ = 103216264.

The previous prime is 206432533. The next prime is 206432543. The reversal of 206432536 is 635234602.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×206432536² = 85228783838782592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 206432498 and 206432507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206432533) 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 as a sum of consecutive naturals, namely, 12902026 + ... + 12902041.

Almost surely, 2^206432536 is an apocalyptic number.

It is an amenable number.

206432536 is a deficient number, since it is larger than the sum of its proper divisors (180628484).

206432536 is a wasteful number, since it uses less digits than its factorization.

206432536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25804073 (or 25804069 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 206432536 is about 14367.7602986687. The cubic root of 206432536 is about 591.0071240730.

The spelling of 206432536 in words is "two hundred six million, four hundred thirty-two thousand, five hundred thirty-six".