206422808 has 8 divisors (see below), whose sum is σ = 387042780. Its totient is φ = 103211400.

The previous prime is 206422807. The next prime is 206422819. The reversal of 206422808 is 808224602.

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 2×206422808² = 85220751325209728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206422807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12901418 + ... + 12901433.

Almost surely, 2^206422808 is an apocalyptic number.

It is an amenable number.

206422808 is a deficient number, since it is larger than the sum of its proper divisors (180619972).

206422808 is a wasteful number, since it uses less digits than its factorization.

206422808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25802857 (or 25802853 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 206422808 is about 14367.4217589657. The cubic root of 206422808 is about 590.9978403174.

The spelling of 206422808 in words is "two hundred six million, four hundred twenty-two thousand, eight hundred eight".