400206196 has 36 divisors (see below), whose sum is σ = 798319200. Its totient is φ = 174983328.

The previous prime is 400206193. The next prime is 400206223. The reversal of 400206196 is 691602004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400206193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2736 + ... + 28423.

Almost surely, 2^400206196 is an apocalyptic number.

It is an amenable number.

400206196 is a deficient number, since it is larger than the sum of its proper divisors (398113004).

400206196 is a wasteful number, since it uses less digits than its factorization.

400206196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31208 (or 31193 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 400206196 is about 20005.1542358463. The cubic root of 400206196 is about 736.9328834062.

The spelling of 400206196 in words is "four hundred million, two hundred six thousand, one hundred ninety-six".