1941440869 has 2 divisors, whose sum is σ = 1941440870. Its totient is φ = 1941440868.

The previous prime is 1941440863. The next prime is 1941441041. The reversal of 1941440869 is 9680441491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1926332100 + 15108769 = 43890^2 + 3887^2 .

It is a cyclic number.

It is not a de Polignac number, because 1941440869 - 2³ = 1941440861 is a prime.

It is a super-2 number, since 2×1941440869² = 7538385295646950322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1941440861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 970720434 + 970720435.

It is an arithmetic number, because the mean of its divisors is an integer number (970720435).

Almost surely, 2^1941440869 is an apocalyptic number.

It is an amenable number.

1941440869 is a deficient number, since it is larger than the sum of its proper divisors (1).

1941440869 is an equidigital number, since it uses as much as digits as its factorization.

1941440869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 1941440869 is about 44061.7846778816. The cubic root of 1941440869 is about 1247.5023982990.

The spelling of 1941440869 in words is "one billion, nine hundred forty-one million, four hundred forty thousand, eight hundred sixty-nine".