1003344420 has 144 divisors (see below), whose sum is σ = 3214628928. Its totient is φ = 232396800.

The previous prime is 1003344389. The next prime is 1003344439. The reversal of 1003344420 is 244433001.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 223195 + ... + 227645.

It is an arithmetic number, because the mean of its divisors is an integer number (22323812).

Almost surely, 2^1003344420 is an apocalyptic number.

1003344420 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 1003344420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1607314464).

1003344420 is an abundant number, since it is smaller than the sum of its proper divisors (2211284508).

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

1003344420 is a wasteful number, since it uses less digits than its factorization.

1003344420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4510 (or 4491 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1003344420 is about 31675.6123855562. The cubic root of 1003344420 is about 1001.1135661768.

Adding to 1003344420 its reverse (244433001), we get a palindrome (1247777421).

The spelling of 1003344420 in words is "one billion, three million, three hundred forty-four thousand, four hundred twenty".