1982520 has 48 divisors (see below), whose sum is σ = 6444360. Its totient is φ = 528576.

The previous prime is 1982509. The next prime is 1982521. The reversal of 1982520 is 252891.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982521) 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, 2394 + ... + 3113.

2^1982520 is an apocalyptic number.

1982520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1982520 is an abundant number, since it is smaller than the sum of its proper divisors (4461840).

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

1982520 is a wasteful number, since it uses less digits than its factorization.

1982520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5524 (or 5517 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1982520 is about 1408.0198862232. The cubic root of 1982520 is about 125.6239734081.

The spelling of 1982520 in words is "one million, nine hundred eighty-two thousand, five hundred twenty".