206222406 has 32 divisors (see below), whose sum is σ = 448586208. Its totient is φ = 62822400.

The previous prime is 206222399. The next prime is 206222413. The reversal of 206222406 is 604222602.

It is an interprime number because it is at equal distance from previous prime (206222399) and next prime (206222413).

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, 5211 + ... + 20966.

It is an arithmetic number, because the mean of its divisors is an integer number (14018319).

Almost surely, 2^206222406 is an apocalyptic number.

206222406 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

206222406 is an abundant number, since it is smaller than the sum of its proper divisors (242363802).

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

206222406 is a wasteful number, since it uses less digits than its factorization.

206222406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26296.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 206222406 is about 14360.4458844424. The cubic root of 206222406 is about 590.8065250608.

The spelling of 206222406 in words is "two hundred six million, two hundred twenty-two thousand, four hundred six".