206422664 has 16 divisors (see below), whose sum is σ = 442334400. Its totient is φ = 88466832.

The previous prime is 206422633. The next prime is 206422673. The reversal of 206422664 is 466224602.

It is a super-2 number, since 2×206422664² = 85220632425713792, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 206422664.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1843004 + ... + 1843115.

It is an arithmetic number, because the mean of its divisors is an integer number (27645900).

Almost surely, 2^206422664 is an apocalyptic number.

It is an amenable number.

206422664 is an abundant number, since it is smaller than the sum of its proper divisors (235911736).

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

206422664 is a wasteful number, since it uses less digits than its factorization.

206422664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3686132 (or 3686128 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 206422664 is about 14367.4167476273. The cubic root of 206422664 is about 590.9977028912.

The spelling of 206422664 in words is "two hundred six million, four hundred twenty-two thousand, six hundred sixty-four".