206389466 has 8 divisors (see below), whose sum is σ = 309650880. Its totient is φ = 103172508.

The previous prime is 206389453. The next prime is 206389483. The reversal of 206389466 is 664983602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×206389466² = 85193223351530312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5405 + ... + 21023.

It is an arithmetic number, because the mean of its divisors is an integer number (38706360).

Almost surely, 2^206389466 is an apocalyptic number.

206389466 is a deficient number, since it is larger than the sum of its proper divisors (103261414).

206389466 is a wasteful number, since it uses less digits than its factorization.

206389466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22228.

The product of its (nonzero) digits is 373248, while the sum is 44.

The square root of 206389466 is about 14366.2613786608. The cubic root of 206389466 is about 590.9660187191.

The spelling of 206389466 in words is "two hundred six million, three hundred eighty-nine thousand, four hundred sixty-six".