1040556 has 24 divisors (see below), whose sum is σ = 2649024. Its totient is φ = 315280.

The previous prime is 1040531. The next prime is 1040563. The reversal of 1040556 is 6550401.

It is a happy number.

It is a nialpdrome in base 12.

It is an unprimeable number.

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, 3810 + ... + 4073.

It is an arithmetic number, because the mean of its divisors is an integer number (110376).

2^1040556 is an apocalyptic number.

It is an amenable number.

1040556 is an abundant number, since it is smaller than the sum of its proper divisors (1608468).

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

1040556 is a wasteful number, since it uses less digits than its factorization.

1040556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7901 (or 7899 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1040556 is about 1020.0764677219. The cubic root of 1040556 is about 101.3339921856. Note that the first 3 decimals are identical.

Adding to 1040556 its reverse (6550401), we get a palindrome (7590957).

It can be divided in two parts, 1040 and 556, that added together give a triangular number (1596 = T₅₆).

The spelling of 1040556 in words is "one million, forty thousand, five hundred fifty-six".