206479406 has 16 divisors (see below), whose sum is σ = 365383680. Its totient is φ = 85636440.

The previous prime is 206479397. The next prime is 206479447. The reversal of 206479406 is 604974602.

It is a super-2 number, since 2×206479406² = 85267490204225672, 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 206479406.

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, 237446 + ... + 238313.

It is an arithmetic number, because the mean of its divisors is an integer number (22836480).

Almost surely, 2^206479406 is an apocalyptic number.

206479406 is a deficient number, since it is larger than the sum of its proper divisors (158904274).

206479406 is a wasteful number, since it uses less digits than its factorization.

206479406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475799.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 206479406 is about 14369.3912884297. The cubic root of 206479406 is about 591.0518495933.

The spelling of 206479406 in words is "two hundred six million, four hundred seventy-nine thousand, four hundred six".