400920206 has 8 divisors (see below), whose sum is σ = 607580400. Its totient is φ = 198393408.

The previous prime is 400920193. The next prime is 400920209. The reversal of 400920206 is 602029004.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400920209) 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 3 ways as a sum of consecutive naturals, for example, 1033106 + ... + 1033493.

It is an arithmetic number, because the mean of its divisors is an integer number (75947550).

Almost surely, 2^400920206 is an apocalyptic number.

400920206 is a deficient number, since it is larger than the sum of its proper divisors (206660194).

400920206 is a wasteful number, since it uses less digits than its factorization.

400920206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2066698.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 400920206 is about 20022.9919342740. The cubic root of 400920206 is about 737.3708783235.

The spelling of 400920206 in words is "four hundred million, nine hundred twenty thousand, two hundred six".