1003404 has 12 divisors (see below), whose sum is σ = 2341304. Its totient is φ = 334464.

The previous prime is 1003397. The next prime is 1003411. The reversal of 1003404 is 4043001.

It is an interprime number because it is at equal distance from previous prime (1003397) and next prime (1003411).

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 83617 = 1003404 / (1 + 0 + 0 + 3 + 4 + 0 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 1003404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41797 + ... + 41820.

2^1003404 is an apocalyptic number.

It is an amenable number.

1003404 is an abundant number, since it is smaller than the sum of its proper divisors (1337900).

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

1003404 is a wasteful number, since it uses less digits than its factorization.

1003404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83624 (or 83622 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1003404 is about 1001.7005540579. The cubic root of 1003404 is about 100.1133381627.

Adding to 1003404 its reverse (4043001), we get a palindrome (5046405).

The spelling of 1003404 in words is "one million, three thousand, four hundred four".