1941948818 has 4 divisors (see below), whose sum is σ = 2912923230. Its totient is φ = 970974408.

The previous prime is 1941948817. The next prime is 1941948821. The reversal of 1941948818 is 8188491491.

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

It can be written as a sum of positive squares in only one way, i.e., 1736972329 + 204976489 = 41677^2 + 14317^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1941948818.

It is not an unprimeable number, because it can be changed into a prime (1941948817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485487203 + ... + 485487206.

Almost surely, 2^1941948818 is an apocalyptic number.

1941948818 is a deficient number, since it is larger than the sum of its proper divisors (970974412).

1941948818 is an equidigital number, since it uses as much as digits as its factorization.

1941948818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970974411.

The product of its digits is 663552, while the sum is 53.

The square root of 1941948818 is about 44067.5483547701. The cubic root of 1941948818 is about 1247.6111856007.

The spelling of 1941948818 in words is "one billion, nine hundred forty-one million, nine hundred forty-eight thousand, eight hundred eighteen".