1941841819 has 4 divisors (see below), whose sum is σ = 2044044040. Its totient is φ = 1839639600.

The previous prime is 1941841817. The next prime is 1941841823. The reversal of 1941841819 is 9181481491.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1941841819 - 2¹ = 1941841817 is a prime.

It is a super-2 number, since 2×1941841819² = 7541499300034457522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1941841817) 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, 51101082 + ... + 51101119.

It is an arithmetic number, because the mean of its divisors is an integer number (511011010).

Almost surely, 2^1941841819 is an apocalyptic number.

1941841819 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1941841819 is a deficient number, since it is larger than the sum of its proper divisors (102202221).

1941841819 is a wasteful number, since it uses less digits than its factorization.

1941841819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102202220.

The product of its digits is 82944, while the sum is 46.

The square root of 1941841819 is about 44066.3343040921. The cubic root of 1941841819 is about 1247.5882712307.

The spelling of 1941841819 in words is "one billion, nine hundred forty-one million, eight hundred forty-one thousand, eight hundred nineteen".