1945441419 has 8 divisors (see below), whose sum is σ = 2594125632. Its totient is φ = 1296859080.

The previous prime is 1945441367. The next prime is 1945441441. The reversal of 1945441419 is 9141445491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1945441419 - 2¹³ = 1945433227 is a prime.

It is a super-2 number, since 2×1945441419² = 7569484629521467122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1935441419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62632 + ... + 88394.

It is an arithmetic number, because the mean of its divisors is an integer number (324265704).

Almost surely, 2^1945441419 is an apocalyptic number.

1945441419 is a deficient number, since it is larger than the sum of its proper divisors (648684213).

1945441419 is a wasteful number, since it uses less digits than its factorization.

1945441419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50937.

The product of its digits is 103680, while the sum is 42.

The square root of 1945441419 is about 44107.1583646011. The cubic root of 1945441419 is about 1248.3586818564.

The spelling of 1945441419 in words is "one billion, nine hundred forty-five million, four hundred forty-one thousand, four hundred nineteen".