401722106 has 4 divisors (see below), whose sum is σ = 602583162. Its totient is φ = 200861052.

The previous prime is 401722103. The next prime is 401722109. The reversal of 401722106 is 601227104.

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

It is an interprime number because it is at equal distance from previous prime (401722103) and next prime (401722109).

It can be written as a sum of positive squares in only one way, i.e., 230766481 + 170955625 = 15191^2 + 13075^2 .

It is a super-2 number, since 2×401722106² = 322761300898150472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401722103) by changing a digit.

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 as a sum of consecutive naturals, namely, 100430525 + ... + 100430528.

Almost surely, 2^401722106 is an apocalyptic number.

401722106 is a deficient number, since it is larger than the sum of its proper divisors (200861056).

401722106 is a wasteful number, since it uses less digits than its factorization.

401722106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200861055.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 401722106 is about 20043.0064112149. The cubic root of 401722106 is about 737.8621680350.

The spelling of 401722106 in words is "four hundred one million, seven hundred twenty-two thousand, one hundred six".