1999022419 has 2 divisors, whose sum is σ = 1999022420. Its totient is φ = 1999022418.

The previous prime is 1999022413. The next prime is 1999022429. The reversal of 1999022419 is 9142209991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1999022419 - 2³ = 1999022411 is a prime.

It is a super-2 number, since 2×1999022419² = 7992181263329223122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1999022411) 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, 999511209 + 999511210.

It is an arithmetic number, because the mean of its divisors is an integer number (999511210).

Almost surely, 2^1999022419 is an apocalyptic number.

1999022419 is a deficient number, since it is larger than the sum of its proper divisors (1).

1999022419 is an equidigital number, since it uses as much as digits as its factorization.

1999022419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 46.

The square root of 1999022419 is about 44710.4285262398. The cubic root of 1999022419 is about 1259.7157372930.

The spelling of 1999022419 in words is "one billion, nine hundred ninety-nine million, twenty-two thousand, four hundred nineteen".