401144321 has 4 divisors (see below), whose sum is σ = 422257200. Its totient is φ = 380031444.

The previous prime is 401144279. The next prime is 401144323. The reversal of 401144321 is 123441104.

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 not a de Polignac number, because 401144321 - 2¹⁸ = 400882177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401144293 and 401144302.

It is not an unprimeable number, because it can be changed into a prime (401144323) 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, 10556411 + ... + 10556448.

It is an arithmetic number, because the mean of its divisors is an integer number (105564300).

Almost surely, 2^401144321 is an apocalyptic number.

It is an amenable number.

401144321 is a deficient number, since it is larger than the sum of its proper divisors (21112879).

401144321 is a wasteful number, since it uses less digits than its factorization.

401144321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21112878.

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

The square root of 401144321 is about 20028.5875937371. The cubic root of 401144321 is about 737.5082498742.

Adding to 401144321 its reverse (123441104), we get a palindrome (524585425).

The spelling of 401144321 in words is "four hundred one million, one hundred forty-four thousand, three hundred twenty-one".