1040644 has 24 divisors (see below), whose sum is σ = 2022048. Its totient is φ = 464640.

The previous prime is 1040629. The next prime is 1040651. The reversal of 1040644 is 4460401.

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, 2772 + ... + 3124.

It is an arithmetic number, because the mean of its divisors is an integer number (84252).

2^1040644 is an apocalyptic number.

It is an amenable number.

1040644 is a deficient number, since it is larger than the sum of its proper divisors (981404).

1040644 is a wasteful number, since it uses less digits than its factorization.

1040644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1040644 is about 1020.1196008312. The cubic root of 1040644 is about 101.3368487161.

The spelling of 1040644 in words is "one million, forty thousand, six hundred forty-four".