1982289319 has 4 divisors (see below), whose sum is σ = 2035864744. Its totient is φ = 1928713896.

The previous prime is 1982289313. The next prime is 1982289373. The reversal of 1982289319 is 9139822891.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1982289319 - 2³ = 1982289311 is a prime.

It is a super-2 number, since 2×1982289319² = 7858941888442967522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982289311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26787657 + ... + 26787730.

It is an arithmetic number, because the mean of its divisors is an integer number (508966186).

Almost surely, 2^1982289319 is an apocalyptic number.

1982289319 is a deficient number, since it is larger than the sum of its proper divisors (53575425).

1982289319 is an equidigital number, since it uses as much as digits as its factorization.

1982289319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53575424.

The product of its digits is 559872, while the sum is 52.

The square root of 1982289319 is about 44522.9078003672. The cubic root of 1982289319 is about 1256.1910079012.

The spelling of 1982289319 in words is "one billion, nine hundred eighty-two million, two hundred eighty-nine thousand, three hundred nineteen".