1042404403 has 4 divisors (see below), whose sum is σ = 1042573168. Its totient is φ = 1042235640.

The previous prime is 1042404373. The next prime is 1042404439. The reversal of 1042404403 is 3044042401.

1042404403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1042404403 - 2²¹ = 1040307251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1042404703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74751 + ... + 87592.

It is an arithmetic number, because the mean of its divisors is an integer number (260643292).

Almost surely, 2^1042404403 is an apocalyptic number.

1042404403 is a deficient number, since it is larger than the sum of its proper divisors (168765).

1042404403 is an equidigital number, since it uses as much as digits as its factorization.

1042404403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168764.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1042404403 is about 32286.2881576684. The cubic root of 1042404403 is about 1013.9395860638.

Adding to 1042404403 its reverse (3044042401), we get a palindrome (4086446804).

The spelling of 1042404403 in words is "one billion, forty-two million, four hundred four thousand, four hundred three".