401600441 has 4 divisors (see below), whose sum is σ = 438109584. Its totient is φ = 365091300.

The previous prime is 401600429. The next prime is 401600471. The reversal of 401600441 is 144006104.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401600441 is a prime.

It is a super-2 number, since 2×401600441² = 322565828422788962, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (401600471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18254555 + ... + 18254576.

It is an arithmetic number, because the mean of its divisors is an integer number (109527396).

Almost surely, 2^401600441 is an apocalyptic number.

It is an amenable number.

401600441 is a deficient number, since it is larger than the sum of its proper divisors (36509143).

401600441 is a wasteful number, since it uses less digits than its factorization.

401600441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36509142.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 401600441 is about 20039.9710828135. The cubic root of 401600441 is about 737.7876712095.

Adding to 401600441 its reverse (144006104), we get a palindrome (545606545).

The spelling of 401600441 in words is "four hundred one million, six hundred thousand, four hundred forty-one".