1002020419 has 2 divisors, whose sum is σ = 1002020420. Its totient is φ = 1002020418.

The previous prime is 1002020389. The next prime is 1002020479. The reversal of 1002020419 is 9140202001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1002020419 - 2⁵ = 1002020387 is a prime.

It is a super-2 number, since 2×1002020419² = 2008089840185871122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1002020396 and 1002020405.

It is not a weakly prime, because it can be changed into another prime (1002020479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501010209 + 501010210.

It is an arithmetic number, because the mean of its divisors is an integer number (501010210).

Almost surely, 2^1002020419 is an apocalyptic number.

1002020419 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002020419 is an equidigital number, since it uses as much as digits as its factorization.

1002020419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1002020419 is about 31654.7061114141. The cubic root of 1002020419 is about 1000.6730199425.

The spelling of 1002020419 in words is "one billion, two million, twenty thousand, four hundred nineteen".