1980252 has 36 divisors (see below), whose sum is σ = 5086536. Its totient is φ = 649440.

The previous prime is 1980247. The next prime is 1980263. The reversal of 1980252 is 2520891.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2002 + ... + 2822.

2^1980252 is an apocalyptic number.

1980252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1980252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2543268).

1980252 is an abundant number, since it is smaller than the sum of its proper divisors (3106284).

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

1980252 is a wasteful number, since it uses less digits than its factorization.

1980252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898 (or 893 counting only the distinct ones).

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

The square root of 1980252 is about 1407.2142693989. The cubic root of 1980252 is about 125.5760505812.

The spelling of 1980252 in words is "one million, nine hundred eighty thousand, two hundred fifty-two".