1982538 has 24 divisors (see below), whose sum is σ = 4350528. Its totient is φ = 652392.

The previous prime is 1982537. The next prime is 1982551. The reversal of 1982538 is 8352891.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (1982537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 831 + ... + 2157.

It is an arithmetic number, because the mean of its divisors is an integer number (181272).

2^1982538 is an apocalyptic number.

1982538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1982538 is an abundant number, since it is smaller than the sum of its proper divisors (2367990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1982538 is a wasteful number, since it uses less digits than its factorization.

1982538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418 (or 1415 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 1982538 is about 1408.0262781639. The cubic root of 1982538 is about 125.6243536018.

The spelling of 1982538 in words is "one million, nine hundred eighty-two thousand, five hundred thirty-eight".