1003442421 has 16 divisors (see below), whose sum is σ = 1417323200. Its totient is φ = 629710848.

The previous prime is 1003442417. The next prime is 1003442431. The reversal of 1003442421 is 1242443001.

It is not a de Polignac number, because 1003442421 - 2² = 1003442417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003442411) 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 15 ways as a sum of consecutive naturals, for example, 47116 + ... + 65013.

It is an arithmetic number, because the mean of its divisors is an integer number (88582700).

Almost surely, 2^1003442421 is an apocalyptic number.

It is an amenable number.

1003442421 is a deficient number, since it is larger than the sum of its proper divisors (413880779).

1003442421 is a wasteful number, since it uses less digits than its factorization.

1003442421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112308.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1003442421 is about 31677.1592949873. The cubic root of 1003442421 is about 1001.1461594832.

Adding to 1003442421 its reverse (1242443001), we get a palindrome (2245885422).

The spelling of 1003442421 in words is "one billion, three million, four hundred forty-two thousand, four hundred twenty-one".