2003221040 has 20 divisors (see below), whose sum is σ = 4657489104. Its totient is φ = 801288384.

The previous prime is 2003221013. The next prime is 2003221043. The reversal of 2003221040 is 401223002.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (2003221043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12520052 + ... + 12520211.

Almost surely, 2^2003221040 is an apocalyptic number.

2003221040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2003221040 is an abundant number, since it is smaller than the sum of its proper divisors (2654268064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2003221040 is a wasteful number, since it uses less digits than its factorization.

2003221040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25040276 (or 25040270 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2003221040 is about 44757.3573840101. The cubic root of 2003221040 is about 1260.5970631301.

Adding to 2003221040 its reverse (401223002), we get a palindrome (2404444042).

The spelling of 2003221040 in words is "two billion, three million, two hundred twenty-one thousand, forty".