1040780 has 24 divisors (see below), whose sum is σ = 2354352. Its totient is φ = 384192.

The previous prime is 1040779. The next prime is 1040783. The reversal of 1040780 is 870401.

It is a happy number.

It is a Smith number, since the sum of its digits (20) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (1040783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1742 + ... + 2261.

It is an arithmetic number, because the mean of its divisors is an integer number (98098).

2^1040780 is an apocalyptic number.

1040780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1040780 is an abundant number, since it is smaller than the sum of its proper divisors (1313572).

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

1040780 is a wasteful number, since it uses less digits than its factorization.

1040780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4025 (or 4023 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 1040780 is about 1020.1862575040. The cubic root of 1040780 is about 101.3412630375.

The spelling of 1040780 in words is "one million, forty thousand, seven hundred eighty".