1980024 has 64 divisors (see below), whose sum is σ = 5495040. Its totient is φ = 591360.

The previous prime is 1980023. The next prime is 1980029. The reversal of 1980024 is 4200891.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a zygodrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 1979976 and 1980003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980023) 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, 9279 + ... + 9489.

It is an arithmetic number, because the mean of its divisors is an integer number (85860).

2^1980024 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 1980024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2747520).

1980024 is an abundant number, since it is smaller than the sum of its proper divisors (3515016).

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

1980024 is a wasteful number, since it uses less digits than its factorization.

1980024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1980024 is about 1407.1332559498. The cubic root of 1980024 is about 125.5712309188.

The spelling of 1980024 in words is "one million, nine hundred eighty thousand, twenty-four".