1044440141 has 4 divisors (see below), whose sum is σ = 1045992732. Its totient is φ = 1042887552.

The previous prime is 1044440123. The next prime is 1044440171. The reversal of 1044440141 is 1410444401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 652598116 + 391842025 = 25546^2 + 19795^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1044440141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044440171) 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, 775286 + ... + 776631.

It is an arithmetic number, because the mean of its divisors is an integer number (261498183).

Almost surely, 2^1044440141 is an apocalyptic number.

It is an amenable number.

1044440141 is a deficient number, since it is larger than the sum of its proper divisors (1552591).

1044440141 is an equidigital number, since it uses as much as digits as its factorization.

1044440141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552590.

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

The square root of 1044440141 is about 32317.7991360798. The cubic root of 1044440141 is about 1014.5992062993.

Adding to 1044440141 its reverse (1410444401), we get a palindrome (2454884542).

The spelling of 1044440141 in words is "one billion, forty-four million, four hundred forty thousand, one hundred forty-one".