1982455 has 16 divisors (see below), whose sum is σ = 2558304. Its totient is φ = 1469440.

The previous prime is 1982447. The next prime is 1982467. The reversal of 1982455 is 5542891.

It is not a de Polignac number, because 1982455 - 2³ = 1982447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1982455.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 6915 + ... + 7195.

It is an arithmetic number, because the mean of its divisors is an integer number (159894).

2^1982455 is an apocalyptic number.

1982455 is a deficient number, since it is larger than the sum of its proper divisors (575849).

1982455 is a wasteful number, since it uses less digits than its factorization.

1982455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386.

The product of its digits is 14400, while the sum is 34.

The square root of 1982455 is about 1407.9968039736. The cubic root of 1982455 is about 125.6226004674.

The spelling of 1982455 in words is "one million, nine hundred eighty-two thousand, four hundred fifty-five".