401883169 has 4 divisors (see below), whose sum is σ = 404103700. Its totient is φ = 399662640.

The previous prime is 401883151. The next prime is 401883187. The reversal of 401883169 is 961388104.

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 (401883151) and next prime (401883187).

It can be written as a sum of positive squares in 2 ways, for example, as 180230625 + 221652544 = 13425^2 + 14888^2 .

It is a cyclic number.

It is not a de Polignac number, because 401883169 - 2¹⁵ = 401850401 is a prime.

It is a super-2 number, since 2×401883169² = 323020163050965122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401881169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1109994 + ... + 1110355.

It is an arithmetic number, because the mean of its divisors is an integer number (101025925).

Almost surely, 2^401883169 is an apocalyptic number.

It is an amenable number.

401883169 is a deficient number, since it is larger than the sum of its proper divisors (2220531).

401883169 is a wasteful number, since it uses less digits than its factorization.

401883169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220530.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 401883169 is about 20047.0239437179. The cubic root of 401883169 is about 737.9607655594.

The spelling of 401883169 in words is "four hundred one million, eight hundred eighty-three thousand, one hundred sixty-nine".