1003222440 has 384 divisors, whose sum is σ = 3764517120. Its totient is φ = 229478400.

The previous prime is 1003222427. The next prime is 1003222469. The reversal of 1003222440 is 442223001.

1003222440 is a `hidden beast` number, since 1 + 0 + 0 + 3 + 222 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 95 ways as a sum of consecutive naturals, for example, 6007237 + ... + 6007403.

It is an arithmetic number, because the mean of its divisors is an integer number (9803430).

Almost surely, 2^1003222440 is an apocalyptic number.

1003222440 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 1003222440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1882258560).

1003222440 is an abundant number, since it is smaller than the sum of its proper divisors (2761294680).

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

1003222440 is a wasteful number, since it uses less digits than its factorization.

1003222440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1003222440 is about 31673.6868709659. The cubic root of 1003222440 is about 1001.0729949367.

Adding to 1003222440 its reverse (442223001), we get a palindrome (1445445441).

The spelling of 1003222440 in words is "one billion, three million, two hundred twenty-two thousand, four hundred forty".