1942937449 has 2 divisors, whose sum is σ = 1942937450. Its totient is φ = 1942937448.

The previous prime is 1942937419. The next prime is 1942937459. The reversal of 1942937449 is 9447392491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1775105424 + 167832025 = 42132^2 + 12955^2 .

It is a cyclic number.

It is not a de Polignac number, because 1942937449 - 2⁵ = 1942937417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1942937396 and 1942937405.

It is not a weakly prime, because it can be changed into another prime (1942937419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 971468724 + 971468725.

It is an arithmetic number, because the mean of its divisors is an integer number (971468725).

Almost surely, 2^1942937449 is an apocalyptic number.

It is an amenable number.

1942937449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1942937449 is an equidigital number, since it uses as much as digits as its factorization.

1942937449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552, while the sum is 52.

The square root of 1942937449 is about 44078.7641500984. The cubic root of 1942937449 is about 1247.8228660584.

The spelling of 1942937449 in words is "one billion, nine hundred forty-two million, nine hundred thirty-seven thousand, four hundred forty-nine".