1020080 has 40 divisors (see below), whose sum is σ = 2437344. Its totient is φ = 396800.

The previous prime is 1020079. The next prime is 1020101. The reversal of 1020080 is 800201.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3125 + ... + 3435.

2^1020080 is an apocalyptic number.

1020080 is a gapful number since it is divisible by the number (10) 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 1020080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1218672).

1020080 is an abundant number, since it is smaller than the sum of its proper divisors (1417264).

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

1020080 is a wasteful number, since it uses less digits than its factorization.

1020080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1020080 is about 1009.9900989614. The cubic root of 1020080 is about 100.6649025806.

Adding to 1020080 its reverse (800201), we get a palindrome (1820281).

The spelling of 1020080 in words is "one million, twenty thousand, eighty".