1942044191 has 4 divisors (see below), whose sum is σ = 1942155384. Its totient is φ = 1941933000.

The previous prime is 1942044187. The next prime is 1942044233. The reversal of 1942044191 is 1914402491.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1942044191 - 2² = 1942044187 is a prime.

It is a super-3 number, since 3×1942044191³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1942044101) 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, 23045 + ... + 66446.

It is an arithmetic number, because the mean of its divisors is an integer number (485538846).

Almost surely, 2^1942044191 is an apocalyptic number.

1942044191 is a deficient number, since it is larger than the sum of its proper divisors (111193).

1942044191 is an equidigital number, since it uses as much as digits as its factorization.

1942044191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111192.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1942044191 is about 44068.6304643110. The cubic root of 1942044191 is about 1247.6316094953.

The spelling of 1942044191 in words is "one billion, nine hundred forty-two million, forty-four thousand, one hundred ninety-one".