1004451404 has 24 divisors (see below), whose sum is σ = 1946215488. Its totient is φ = 449753040.

The previous prime is 1004451403. The next prime is 1004451421. The reversal of 1004451404 is 4041544001.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1004451404.

It is not an unprimeable number, because it can be changed into a prime (1004451401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167414 + ... + 173309.

It is an arithmetic number, because the mean of its divisors is an integer number (81092312).

Almost surely, 2^1004451404 is an apocalyptic number.

It is an amenable number.

1004451404 is a deficient number, since it is larger than the sum of its proper divisors (941764084).

1004451404 is a wasteful number, since it uses less digits than its factorization.

1004451404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340805 (or 340803 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 1004451404 is about 31693.0813270026. The cubic root of 1004451404 is about 1001.4816050956.

Adding to 1004451404 its reverse (4041544001), we get a palindrome (5045995405).

The spelling of 1004451404 in words is "one billion, four million, four hundred fifty-one thousand, four hundred four".