1003112440 has 64 divisors (see below), whose sum is σ = 2467208160. Its totient is φ = 364024320.

The previous prime is 1003112389. The next prime is 1003112443. The reversal of 1003112440 is 442113001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003112443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243034 + ... + 247126.

Almost surely, 2^1003112440 is an apocalyptic number.

1003112440 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 1003112440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1233604080).

1003112440 is an abundant number, since it is smaller than the sum of its proper divisors (1464095720).

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

1003112440 is a wasteful number, since it uses less digits than its factorization.

1003112440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4672 (or 4668 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1003112440 is about 31671.9503662152. The cubic root of 1003112440 is about 1001.0364054926.

Adding to 1003112440 its reverse (442113001), we get a palindrome (1445225441).

The spelling of 1003112440 in words is "one billion, three million, one hundred twelve thousand, four hundred forty".