1004493 has 16 divisors (see below), whose sum is σ = 1581056. Its totient is φ = 555120.

The previous prime is 1004483. The next prime is 1004501. The reversal of 1004493 is 3944001.

It is not a de Polignac number, because 1004493 - 2⁴ = 1004477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121 + ... + 1422.

It is an arithmetic number, because the mean of its divisors is an integer number (98816).

2^1004493 is an apocalyptic number.

It is an amenable number.

1004493 is a deficient number, since it is larger than the sum of its proper divisors (576563).

1004493 is a wasteful number, since it uses less digits than its factorization.

1004493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1584.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1004493 is about 1002.2439822718. The cubic root of 1004493 is about 100.1495429243.

Adding to 1004493 its reverse (3944001), we get a palindrome (4948494).

The spelling of 1004493 in words is "one million, four thousand, four hundred ninety-three".