1040520 has 128 divisors (see below), whose sum is σ = 3628800. Its totient is φ = 236544.

The previous prime is 1040503. The next prime is 1040521. The reversal of 1040520 is 250401.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1040496 and 1040505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35866 + ... + 35894.

It is an arithmetic number, because the mean of its divisors is an integer number (28350).

2^1040520 is an apocalyptic number.

1040520 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 1040520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1814400).

1040520 is an abundant number, since it is smaller than the sum of its proper divisors (2588280).

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

1040520 is a wasteful number, since it uses less digits than its factorization.

1040520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 1040520 is about 1020.0588218333. The cubic root of 1040520 is about 101.3328235585.

Adding to 1040520 its reverse (250401), we get a palindrome (1290921).

The spelling of 1040520 in words is "one million, forty thousand, five hundred twenty".