2000400003 has 16 divisors (see below), whose sum is σ = 3386920960. Its totient is φ = 1143085608.

The previous prime is 2000399993. The next prime is 2000400011. The reversal of 2000400003 is 3000040002.

It is not a de Polignac number, because 2000400003 - 2⁹ = 2000399491 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000400053) 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, 5291875 + ... + 5292252.

It is an arithmetic number, because the mean of its divisors is an integer number (211682560).

Almost surely, 2^2000400003 is an apocalyptic number.

2000400003 is a deficient number, since it is larger than the sum of its proper divisors (1386520957).

2000400003 is a wasteful number, since it uses less digits than its factorization.

2000400003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10584143 (or 10584137 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 2000400003 is about 44725.8314959040. The cubic root of 2000400003 is about 1260.0050396624.

Adding to 2000400003 its reverse (3000040002), we get a palindrome (5000440005).

The spelling of 2000400003 in words is "two billion, four hundred thousand, three".