401351066 has 4 divisors (see below), whose sum is σ = 602026602. Its totient is φ = 200675532.

The previous prime is 401351063. The next prime is 401351077. The reversal of 401351066 is 660153104.

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., 379119841 + 22231225 = 19471^2 + 4715^2 .

It is a super-2 number, since 2×401351066² = 322165356358672712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401351063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100337765 + ... + 100337768.

Almost surely, 2^401351066 is an apocalyptic number.

401351066 is a deficient number, since it is larger than the sum of its proper divisors (200675536).

401351066 is a wasteful number, since it uses less digits than its factorization.

401351066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200675535.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 401351066 is about 20033.7481765145. The cubic root of 401351066 is about 737.6349290998.

The spelling of 401351066 in words is "four hundred one million, three hundred fifty-one thousand, sixty-six".