206864402 has 8 divisors (see below), whose sum is σ = 311652300. Its totient is φ = 102980304.

The previous prime is 206864377. The next prime is 206864473. The reversal of 206864402 is 204468602.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 161315401 + 45549001 = 12701^2 + 6749^2 .

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

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, 225377 + ... + 226292.

Almost surely, 2^206864402 is an apocalyptic number.

206864402 is a deficient number, since it is larger than the sum of its proper divisors (104787898).

206864402 is a wasteful number, since it uses less digits than its factorization.

206864402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451900.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 206864402 is about 14382.7814417101. The cubic root of 206864402 is about 591.4189746884.

The spelling of 206864402 in words is "two hundred six million, eight hundred sixty-four thousand, four hundred two".