1020419399 has 2 divisors, whose sum is σ = 1020419400. Its totient is φ = 1020419398.

The previous prime is 1020419359. The next prime is 1020419419. The reversal of 1020419399 is 9939140201.

It is a strong prime.

It is an emirp because it is prime and its reverse (9939140201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020419399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020419359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510209699 + 510209700.

It is an arithmetic number, because the mean of its divisors is an integer number (510209700).

Almost surely, 2^1020419399 is an apocalyptic number.

1020419399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020419399 is an equidigital number, since it uses as much as digits as its factorization.

1020419399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 1020419399 is about 31944.0041165787. The cubic root of 1020419399 is about 1006.7606568503.

The spelling of 1020419399 in words is "one billion, twenty million, four hundred nineteen thousand, three hundred ninety-nine".