401131466 has 4 divisors (see below), whose sum is σ = 601697202. Its totient is φ = 200565732.

The previous prime is 401131463. The next prime is 401131481. The reversal of 401131466 is 664131104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 286320241 + 114811225 = 16921^2 + 10715^2 .

It is not an unprimeable number, because it can be changed into a prime (401131463) 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 as a sum of consecutive naturals, namely, 100282865 + ... + 100282868.

Almost surely, 2^401131466 is an apocalyptic number.

401131466 is a deficient number, since it is larger than the sum of its proper divisors (200565736).

401131466 is a wasteful number, since it uses less digits than its factorization.

401131466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200565735.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 401131466 is about 20028.2666748773. The cubic root of 401131466 is about 737.5003717704.

The spelling of 401131466 in words is "four hundred one million, one hundred thirty-one thousand, four hundred sixty-six".