1003221340 has 96 divisors (see below), whose sum is σ = 2444105664. Its totient is φ = 341852160.

The previous prime is 1003221319. The next prime is 1003221341. The reversal of 1003221340 is 431223001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003221341) 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 31 ways as a sum of consecutive naturals, for example, 1170192 + ... + 1171048.

It is an arithmetic number, because the mean of its divisors is an integer number (25459434).

Almost surely, 2^1003221340 is an apocalyptic number.

1003221340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1003221340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1222052832).

1003221340 is an abundant number, since it is smaller than the sum of its proper divisors (1440884324).

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

1003221340 is a wasteful number, since it uses less digits than its factorization.

1003221340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207 (or 1205 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1003221340 is about 31673.6695063897. The cubic root of 1003221340 is about 1001.0726290555.

Adding to 1003221340 its reverse (431223001), we get a palindrome (1434444341).

The spelling of 1003221340 in words is "one billion, three million, two hundred twenty-one thousand, three hundred forty".