401145044 has 6 divisors (see below), whose sum is σ = 702003834. Its totient is φ = 200572520.

The previous prime is 401145037. The next prime is 401145049. The reversal of 401145044 is 440541104.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 352312900 + 48832144 = 18770^2 + 6988^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401145049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50143127 + ... + 50143134.

It is an arithmetic number, because the mean of its divisors is an integer number (117000639).

Almost surely, 2^401145044 is an apocalyptic number.

It is an amenable number.

401145044 is a deficient number, since it is larger than the sum of its proper divisors (300858790).

401145044 is a wasteful number, since it uses less digits than its factorization.

401145044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100286265 (or 100286263 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 401145044 is about 20028.6056429298. The cubic root of 401145044 is about 737.5086929551.

Adding to 401145044 its reverse (440541104), we get a palindrome (841686148).

The spelling of 401145044 in words is "four hundred one million, one hundred forty-five thousand, forty-four".