1960019449 has 2 divisors, whose sum is σ = 1960019450. Its totient is φ = 1960019448.

The previous prime is 1960019441. The next prime is 1960019513. The reversal of 1960019449 is 9449100691.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1419782400 + 540237049 = 37680^2 + 23243^2 .

It is a cyclic number.

It is not a de Polignac number, because 1960019449 - 2³ = 1960019441 is a prime.

It is not a weakly prime, because it can be changed into another prime (1960019441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 980009724 + 980009725.

It is an arithmetic number, because the mean of its divisors is an integer number (980009725).

Almost surely, 2^1960019449 is an apocalyptic number.

It is an amenable number.

1960019449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1960019449 is an equidigital number, since it uses as much as digits as its factorization.

1960019449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 1960019449 is about 44272.1068958775. The cubic root of 1960019449 is about 1251.4690885334.

The spelling of 1960019449 in words is "one billion, nine hundred sixty million, nineteen thousand, four hundred forty-nine".