1003221240 has 64 divisors (see below), whose sum is σ = 3439618560. Its totient is φ = 229307520.

The previous prime is 1003221227. The next prime is 1003221253. The reversal of 1003221240 is 421223001.

It is an interprime number because it is at equal distance from previous prime (1003221227) and next prime (1003221253).

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, 596316 + ... + 597995.

It is an arithmetic number, because the mean of its divisors is an integer number (53744040).

Almost surely, 2^1003221240 is an apocalyptic number.

1003221240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1003221240 is an abundant number, since it is smaller than the sum of its proper divisors (2436397320).

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

1003221240 is a wasteful number, since it uses less digits than its factorization.

1003221240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194332 (or 1194328 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1003221240 is about 31673.6679277914. The cubic root of 1003221240 is about 1001.0725957936.

Adding to 1003221240 its reverse (421223001), we get a palindrome (1424444241).

The spelling of 1003221240 in words is "one billion, three million, two hundred twenty-one thousand, two hundred forty".