400210166 has 32 divisors (see below), whose sum is σ = 637156800. Its totient is φ = 188153856.

The previous prime is 400210103. The next prime is 400210171. The reversal of 400210166 is 661012004.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1146560 + ... + 1146908.

It is an arithmetic number, because the mean of its divisors is an integer number (19911150).

Almost surely, 2^400210166 is an apocalyptic number.

400210166 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

400210166 is a deficient number, since it is larger than the sum of its proper divisors (236946634).

400210166 is a wasteful number, since it uses less digits than its factorization.

400210166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 400210166 is about 20005.2534600289. The cubic root of 400210166 is about 736.9353201616.

The spelling of 400210166 in words is "four hundred million, two hundred ten thousand, one hundred sixty-six".