1889442083 has 2 divisors, whose sum is σ = 1889442084. Its totient is φ = 1889442082.

The previous prime is 1889442077. The next prime is 1889442109. The reversal of 1889442083 is 3802449881.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1889442083 - 2²² = 1885247779 is a prime.

It is a super-2 number, since 2×1889442083² = 7139982770022757778, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1889442013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 944721041 + 944721042.

It is an arithmetic number, because the mean of its divisors is an integer number (944721042).

Almost surely, 2^1889442083 is an apocalyptic number.

1889442083 is a deficient number, since it is larger than the sum of its proper divisors (1).

1889442083 is an equidigital number, since it uses as much as digits as its factorization.

1889442083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 442368, while the sum is 47.

The square root of 1889442083 is about 43467.7131098474. The cubic root of 1889442083 is about 1236.2639200263.

The spelling of 1889442083 in words is "one billion, eight hundred eighty-nine million, four hundred forty-two thousand, eighty-three".