1009680 has 80 divisors (see below), whose sum is σ = 3583104. Its totient is φ = 230400.

The previous prime is 1009669. The next prime is 1009727. The reversal of 1009680 is 869001.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1009680.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1380 + ... + 1980.

2^1009680 is an apocalyptic number.

1009680 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 1009680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1791552).

1009680 is an abundant number, since it is smaller than the sum of its proper divisors (2573424).

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

1009680 is a wasteful number, since it uses less digits than its factorization.

1009680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624 (or 618 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1009680 is about 1004.8283435493. The cubic root of 1009680 is about 100.3216310920.

The spelling of 1009680 in words is "one million, nine thousand, six hundred eighty".