1980528 has 80 divisors (see below), whose sum is σ = 5809152. Its totient is φ = 580800.

The previous prime is 1980523. The next prime is 1980529. The reversal of 1980528 is 8250891.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a zygodrome in base 2 and base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980521) 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, 63873 + ... + 63903.

2^1980528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1980528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2904576).

1980528 is an abundant number, since it is smaller than the sum of its proper divisors (3828624).

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

1980528 is a wasteful number, since it uses less digits than its factorization.

1980528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 1980528 is about 1407.3123320713. The cubic root of 1980528 is about 125.5818844145.

The spelling of 1980528 in words is "one million, nine hundred eighty thousand, five hundred twenty-eight".