2003401005 has 16 divisors (see below), whose sum is σ = 3228842304. Its totient is φ = 1060680320.

The previous prime is 2003400967. The next prime is 2003401027. The reversal of 2003401005 is 5001043002.

It is not a de Polignac number, because 2003401005 - 2⁶ = 2003400941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

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, 485391 + ... + 489500.

It is an arithmetic number, because the mean of its divisors is an integer number (201802644).

Almost surely, 2^2003401005 is an apocalyptic number.

It is an amenable number.

2003401005 is a deficient number, since it is larger than the sum of its proper divisors (1225441299).

2003401005 is a wasteful number, since it uses less digits than its factorization.

2003401005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975036.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2003401005 is about 44759.3677904414. The cubic root of 2003401005 is about 1260.6348117614.

Adding to 2003401005 its reverse (5001043002), we get a palindrome (7004444007).

The spelling of 2003401005 in words is "two billion, three million, four hundred one thousand, five".