1405982 has 4 divisors (see below), whose sum is σ = 2108976. Its totient is φ = 702990.

The previous prime is 1405979. The next prime is 1405997. The reversal of 1405982 is 2895041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2895041 = 29 ⋅99829.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 351494 + ... + 351497.

It is an arithmetic number, because the mean of its divisors is an integer number (527244).

2^1405982 is an apocalyptic number.

1405982 is a deficient number, since it is larger than the sum of its proper divisors (702994).

1405982 is an equidigital number, since it uses as much as digits as its factorization.

1405982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702993.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 1405982 is about 1185.7411184571. The cubic root of 1405982 is about 112.0280010771.

It can be divided in two parts, 14059 and 82, that added together give a palindrome (14141).

The spelling of 1405982 in words is "one million, four hundred five thousand, nine hundred eighty-two".