401446166 has 16 divisors (see below), whose sum is σ = 658365840. Its totient is φ = 182071680.

The previous prime is 401446147. The next prime is 401446169. The reversal of 401446166 is 661644104.

It is a super-2 number, since 2×401446166² = 322318048392199112, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401446169) 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 7 ways as a sum of consecutive naturals, for example, 9911 + ... + 30018.

It is an arithmetic number, because the mean of its divisors is an integer number (41147865).

Almost surely, 2^401446166 is an apocalyptic number.

401446166 is a deficient number, since it is larger than the sum of its proper divisors (256919674).

401446166 is a wasteful number, since it uses less digits than its factorization.

401446166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40399.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 401446166 is about 20036.1215308752. The cubic root of 401446166 is about 737.6931852815.

The spelling of 401446166 in words is "four hundred one million, four hundred forty-six thousand, one hundred sixty-six".