206216436 has 24 divisors (see below), whose sum is σ = 502092864. Its totient is φ = 65750080.

The previous prime is 206216399. The next prime is 206216441. The reversal of 206216436 is 634612602.

206216436 is digitally balanced in base 2, base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

206216436 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373305 + ... + 373856.

It is an arithmetic number, because the mean of its divisors is an integer number (20920536).

Almost surely, 2^206216436 is an apocalyptic number.

It is an amenable number.

206216436 is an abundant number, since it is smaller than the sum of its proper divisors (295876428).

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

206216436 is a wasteful number, since it uses less digits than its factorization.

206216436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747191 (or 747189 counting only the distinct ones).

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

The square root of 206216436 is about 14360.2380203115. The cubic root of 206216436 is about 590.8008238553.

The spelling of 206216436 in words is "two hundred six million, two hundred sixteen thousand, four hundred thirty-six".