1040664 has 32 divisors (see below), whose sum is σ = 2629440. Its totient is φ = 343200.

The previous prime is 1040659. The next prime is 1040671. The reversal of 1040664 is 4660401.

1040664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (21) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1040664.

It is a congruent number.

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, 2979 + ... + 3309.

It is an arithmetic number, because the mean of its divisors is an integer number (82170).

2^1040664 is an apocalyptic number.

It is an amenable number.

1040664 is an abundant number, since it is smaller than the sum of its proper divisors (1588776).

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

1040664 is a wasteful number, since it uses less digits than its factorization.

1040664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1040664 is about 1020.1294035562. The cubic root of 1040664 is about 101.3374979052.

The spelling of 1040664 in words is "one million, forty thousand, six hundred sixty-four".