2003421441 has 16 divisors (see below), whose sum is σ = 3056577408. Its totient is φ = 1143408000.

The previous prime is 2003421437. The next prime is 2003421451. The reversal of 2003421441 is 1441243002.

It is not a de Polignac number, because 2003421441 - 2² = 2003421437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2003421401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40860 + ... + 75341.

It is an arithmetic number, because the mean of its divisors is an integer number (191036088).

Almost surely, 2^2003421441 is an apocalyptic number.

2003421441 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2003421441 is a deficient number, since it is larger than the sum of its proper divisors (1053155967).

2003421441 is a wasteful number, since it uses less digits than its factorization.

2003421441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117032.

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

The square root of 2003421441 is about 44759.5960772659. The cubic root of 2003421441 is about 1260.6390981799.

Adding to 2003421441 its reverse (1441243002), we get a palindrome (3444664443).

The spelling of 2003421441 in words is "two billion, three million, four hundred twenty-one thousand, four hundred forty-one".