1942194823 has 4 divisors (see below), whose sum is σ = 1942443880. Its totient is φ = 1941945768.

The previous prime is 1942194817. The next prime is 1942194853. The reversal of 1942194823 is 3284912491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3284912491 = 7 ⋅469273213.

It is a cyclic number.

It is not a de Polignac number, because 1942194823 - 2⁵ = 1942194791 is a prime.

It is a super-3 number, since 3×1942194823³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1942194823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1942194853) 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, 112440 + ... + 128557.

It is an arithmetic number, because the mean of its divisors is an integer number (485610970).

Almost surely, 2^1942194823 is an apocalyptic number.

1942194823 is a deficient number, since it is larger than the sum of its proper divisors (249057).

1942194823 is an equidigital number, since it uses as much as digits as its factorization.

1942194823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249056.

The product of its digits is 124416, while the sum is 43.

The square root of 1942194823 is about 44070.3394926792. The cubic root of 1942194823 is about 1247.6638656074.

It can be divided in two parts, 19421 and 94823, that added together give a square (114244 = 338²).

The spelling of 1942194823 in words is "one billion, nine hundred forty-two million, one hundred ninety-four thousand, eight hundred twenty-three".