1401444041 has 4 divisors (see below), whose sum is σ = 1405921812. Its totient is φ = 1396966272.

The previous prime is 1401444019. The next prime is 1401444043. The reversal of 1401444041 is 1404441041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1404441041 = 1483 ⋅947027.

It can be written as a sum of positive squares in 2 ways, for example, as 756030016 + 645414025 = 27496^2 + 25405^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1401444041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1401443998 and 1401444016.

It is not an unprimeable number, because it can be changed into a prime (1401444043) 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, 2238416 + ... + 2239041.

It is an arithmetic number, because the mean of its divisors is an integer number (351480453).

Almost surely, 2^1401444041 is an apocalyptic number.

It is an amenable number.

1401444041 is a deficient number, since it is larger than the sum of its proper divisors (4477771).

1401444041 is an equidigital number, since it uses as much as digits as its factorization.

1401444041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4477770.

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 1401444041 is about 37435.8657038942. The cubic root of 1401444041 is about 1119.0734367480.

Adding to 1401444041 its reverse (1404441041), we get a palindrome (2805885082).

The spelling of 1401444041 in words is "one billion, four hundred one million, four hundred forty-four thousand, forty-one".