1982013 has 16 divisors (see below), whose sum is σ = 3053376. Its totient is φ = 1130240.

The previous prime is 1982011. The next prime is 1982021. The reversal of 1982013 is 3102891.

It is a cyclic number.

It is not a de Polignac number, because 1982013 - 2¹ = 1982011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1206 + ... + 2327.

It is an arithmetic number, because the mean of its divisors is an integer number (190836).

2^1982013 is an apocalyptic number.

It is an amenable number.

1982013 is a deficient number, since it is larger than the sum of its proper divisors (1071363).

1982013 is a wasteful number, since it uses less digits than its factorization.

1982013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3564.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1982013 is about 1407.8398346403. The cubic root of 1982013 is about 125.6132636743.

It can be divided in two parts, 198 and 2013, that added together give a triangular number (2211 = T₆₆).

The spelling of 1982013 in words is "one million, nine hundred eighty-two thousand, thirteen".