1003442240 has 56 divisors (see below), whose sum is σ = 2408358912. Its totient is φ = 398200320.

The previous prime is 1003442239. The next prime is 1003442291. The reversal of 1003442240 is 422443001.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28295 + ... + 52985.

Almost surely, 2^1003442240 is an apocalyptic number.

1003442240 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 1003442240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1204179456).

1003442240 is an abundant number, since it is smaller than the sum of its proper divisors (1404916672).

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

1003442240 is a wasteful number, since it uses less digits than its factorization.

1003442240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24835 (or 24825 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1003442240 is about 31677.1564380391. The cubic root of 1003442240 is about 1001.1460992879.

Adding to 1003442240 its reverse (422443001), we get a palindrome (1425885241).

The spelling of 1003442240 in words is "one billion, three million, four hundred forty-two thousand, two hundred forty".