1942280993 has 2 divisors, whose sum is σ = 1942280994. Its totient is φ = 1942280992.

The previous prime is 1942280971. The next prime is 1942280999. The reversal of 1942280993 is 3990822491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1764672064 + 177608929 = 42008^2 + 13327^2 .

It is a cyclic number.

It is not a de Polignac number, because 1942280993 - 2⁸ = 1942280737 is a prime.

It is not a weakly prime, because it can be changed into another prime (1942280999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 971140496 + 971140497.

It is an arithmetic number, because the mean of its divisors is an integer number (971140497).

Almost surely, 2^1942280993 is an apocalyptic number.

It is an amenable number.

1942280993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1942280993 is an equidigital number, since it uses as much as digits as its factorization.

1942280993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 1942280993 is about 44071.3171234988. The cubic root of 1942280993 is about 1247.6823171730.

The spelling of 1942280993 in words is "one billion, nine hundred forty-two million, two hundred eighty thousand, nine hundred ninety-three".