1000403404 has 96 divisors (see below), whose sum is σ = 2399040000. Its totient is φ = 359714880.

The previous prime is 1000403363. The next prime is 1000403407. The reversal of 1000403404 is 4043040001.

It is not an unprimeable number, because it can be changed into a prime (1000403407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193647 + ... + 198745.

It is an arithmetic number, because the mean of its divisors is an integer number (24990000).

Almost surely, 2^1000403404 is an apocalyptic number.

1000403404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1000403404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1199520000).

1000403404 is an abundant number, since it is smaller than the sum of its proper divisors (1398636596).

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

1000403404 is a wasteful number, since it uses less digits than its factorization.

1000403404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5148 (or 5132 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1000403404 is about 31629.1543358339. The cubic root of 1000403404 is about 1000.1344499224.

Adding to 1000403404 its reverse (4043040001), we get a palindrome (5043443405).

It can be divided in two parts, 1000 and 403404, that added together give a palindrome (404404).

The spelling of 1000403404 in words is "one billion, four hundred three thousand, four hundred four".