206436126 has 32 divisors (see below), whose sum is σ = 454099968. Its totient is φ = 62166240.

The previous prime is 206436119. The next prime is 206436137. The reversal of 206436126 is 621634602.

It is a junction number, because it is equal to n+sod(n) for n = 206436093 and 206436102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24490 + ... + 31821.

It is an arithmetic number, because the mean of its divisors is an integer number (14190624).

Almost surely, 2^206436126 is an apocalyptic number.

206436126 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

206436126 is an abundant number, since it is smaller than the sum of its proper divisors (247663842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206436126 is a wasteful number, since it uses less digits than its factorization.

206436126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56376.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 206436126 is about 14367.8852306107. The cubic root of 206436126 is about 591.0105500563.

The spelling of 206436126 in words is "two hundred six million, four hundred thirty-six thousand, one hundred twenty-six".