1982343455 has 4 divisors (see below), whose sum is σ = 2378812152. Its totient is φ = 1585874760.

The previous prime is 1982343431. The next prime is 1982343457. The reversal of 1982343455 is 5543432891.

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

It is not a de Polignac number, because 1982343455 - 2¹⁰ = 1982342431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982343457) 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, 198234341 + ... + 198234350.

It is an arithmetic number, because the mean of its divisors is an integer number (594703038).

Almost surely, 2^1982343455 is an apocalyptic number.

1982343455 is a deficient number, since it is larger than the sum of its proper divisors (396468697).

1982343455 is an equidigital number, since it uses as much as digits as its factorization.

1982343455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396468696.

The product of its digits is 518400, while the sum is 44.

The square root of 1982343455 is about 44523.5157529142. The cubic root of 1982343455 is about 1256.2024432547.

The spelling of 1982343455 in words is "one billion, nine hundred eighty-two million, three hundred forty-three thousand, four hundred fifty-five".